Answer:
Sun gives heat and light to earth. Earth orbits sun in 365.242 days. THis orbital motion makes seasons along with axial tilt of Earth.. Suns heat makes clouds making rains.so most places on earth gets water and plants survive.
Answer:
what is the exact time of revolution of the earth around the sun ?
where is the axis of rotation (of the earth) pointed towards ?
Susanna was hiking in the mountains, and she discovered an interesting, shiny rock. She wondered if this sample was actually a rock or if it might be a mineral. As she observed it more closely, she noted that it was solid and naturally occurring, with a definite chemical composition. The sample did not appear to have a crystal structure.
Could Susanna have found a mineral? Explain why or why not.
please help me out
Answer:
Yes it is a mineral
Explanation:
Susanna has found a mineral because the five characteristics of a mineral are naturally occurring solid, crystal structure, forms by inorganic process, and definite chemical composition. Everything that was listed in the question describes the fact that its a mineral.
Brainliest would be appreciated :)
Answer: yes it is
Explanation: yes it is
Which of the following is true for compounds?
a) They can be created by chemical reactions.
b) They can be separated into their component elements through physical means.
c) They all have the same properties regardless of their elemental composition.
d) They can consist of no more than two types of elements.
Answer:
Answer: The correct option is that the compounds are created by chemical reactions.
Explanation:
Option 1: Elements combine chemically in a specific ratio to form compounds. They can't be separated by physical methods like filtration. For example, is made up 2 H-atoms and 1 O-atom. When we filter water through normal filtration, we do not obtain H-atom and O-atom separately, but we get combined form of hydrogen and oxygen atom that is .
Option 2: Compounds are formed when two or more elements combine chemically.
Option 3: Compounds can have more than two types of elements. For example, In , 3 elements are present - Calcium(Ca), Carbon(C), Oxygen(O).
Option 4: Compounds formed have different properties from one another. There can be difference in physical properties as well as chemical properties. For example, (water) and (calcium carbonate) are two compounds. Water is present in liquid state and calcium carbonate is present in solid state. Hence, it showed that all the compounds cannot have same properties
The chemical compound can be created by chemical reactions. Therefore, option (A) is correct.
What is a Chemical compound?A chemical compound can be defined as a combination of two or more either similar or dissimilar chemical elements. A chemical compound is composed of many identical molecules containing atoms from more than one element held together by chemical bonds.
A molecule containing atoms of one element is therefore not a compound. A compound can be converted into a different substance by a chemical reaction, which can involve interactions with other substances. The chemical bonds between atoms may be broken or form new bonds.
Molecular compounds have covalent bonds, ionic compounds have ionic bonds, Metallic compounds have metallic bonds and coordination complexes have coordinated covalent bonds.
Therefore, compounds can be created by chemical reactions. They have different properties regardless of their elemental composition.
Learn more about a chemical compound, here:
brainly.com/question/12166462
#SPJ6
The diagram below shows part of the rock cycle. (4 points)
Rock cycle with a volcanic eruption at the top. Moving counterclockwise, there is an arrow pointing to Rock B. From Rock B there is an arrow labeled sediment and compaction pointing to Rock C. From Rock C there is an arrow labeled heat and pressure pointing to Rock A. From Rock A there is an arrow labeled magma pointing back to volcanic eruption.
Which type of rock does B represent?
Answer Choices
1)Igneous rock
2)Metamorphic rock
3)Rock formed by compaction
4)Rock formed by heat and pressure
Answer:
1
Explanation:
Answer:
1. heat and pressure
sedimentary to metamorphic is heat and pressure
2. compaction and cementation
sediment to sedimentary rock is compaction and cementation
3. weathering and erosion
igneous rock to sediment is weathering and erosion
Calculate the estimated density of each ball. Use the formula
D = m/V
where D is the density, m is the mass, and V is the volume. Record your calculations in Table A of your Student Guide.
Given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. Record your prediction in Table A.
What is the estimated density of the table tennis ball? Record your answer to the nearest hundredth.
_______g/cm3
What is the estimated density of the golf ball? Record your answer to the nearest hundreth.
________ g/cm3
Answer: table tennis ball: 0.07
golf ball: 1.37
Explanation:
must contain 2 decimal points.
1. Annotate the calendar below to show approximately when the four seasons occur during the year.
Answer:
p o i n t s
Explanation:
Answer:
Spring runs from March 1 to May 31
Summer runs from June 1 to August 31
Fall (autumn) runs from September 1 to November 30
Winter runs from December 1 to February 28 (February 29 in a leap year).
Explanation:
According to the meteorological definition, the seasons begin on the first day of the months that include the equinoxes and solstices:
Spring runs from March 1 to May 31;
Summer runs from June 1 to August 31;
Fall (autumn) runs from September 1 to November 30; and
Winter runs from December 1 to February 28 (February 29 in a leap year).
i need help with this pls answer this asap
Help Please! Thanks!
Answer:
a
Explanation:
it would be the most reasonable
TRUE OR FALSE 3 QUESTION If the statement is true, write true. If the statement is false, change the capitle word to make the statement true.
1) Cell growth and production of new organelles and enzymes are
characteristics of PROPHASE.
2) It would take FIVE cell divisions for one original cell to produce 128 new cells.
3) he two rod-like parts that make up a chromosome are called
CHROMATIDS.
1) This statement is False.
2) This statement is False.
3) This statement is True.
Cell growth and production of new organelles and enzymes are characteristics of Interphase, which is the resting phase between 2 successive cell divisions. Prophase is the first stage of mitotic division.
One original cell will take seven cell divisions to produce 128 new cells. Cell division is the process by which one original cell divides into two daughter cells.
The rod-like parts that makeup chromosomes are called chromatids. Each chromatid contains a double helix of DNA.
To learn more about Mitotic Division,
https://brainly.com/question/28754554
To learn more about Chromatids,
https://brainly.com/question/14412812
If energy is released or absorbed during a chemical reaction, where is the energy going?
Answer:
reactants give energy and products, when the energy is absorbed to break bonds the energy will be released
Explanation:
Answer:
Due to the absorption of energy when chemical bonds are broken, and the release of energy when chemical bonds are formed, chemical reactions almost always involve a change in energy between products and reactants.
Explanation:
Which material absorbs the MOST solar radiation? a.Sand b.Grassy Field C.Fresh snow d.Forest
Forest absorbs most of the solar radiation. Therefore, option (d) is correct.
What are solar radiations?Solar radiation can be described as electromagnetic waves coming from the sun and comes in three major types: visible light, infrared light, and ultraviolet light.
The electromagnetic spectrum has seven different types of light, listed from lowest frequency to highest: radio waves, microwaves, IR light, visible light, UV light, X-rays, and gamma rays. Solar radiation is light from the sun that can be categorized by its frequency and wavelength.
Solar irradiance can be described as the power per unit area received from the Sun in the form of radiation in the wavelength range and is measured in watts per square meter.
This may be measured in space or at the surface of the earth after atmospheric absorption and scattering. The forests have plants and trees which absorb the most solar radiation.
Learn more about solar radiation, here:
https://brainly.com/question/307832
#SPJ2
Guillermo was finding it difficult to walk up the steps to his family’s apartment. His doctor thinks that his cells might not be getting enough oxygen or glucose Why does having low levels of glucose or oxygen in his cells make it difficult for Guillermo to walk up steps? (Sentence starter: It is difficult for Guillermo to walk up steps because...
Answer:
Without enough oxygenated blood cells, his brain isn't getting enough oxygen, making it harder for his brain to process movement.
Explanation:
When you don't have enough oxygenated blood cells, you aren't getting enough oxygen to your brain, making it harder for you brain too process movement.
Irrigation is a method used to water farm land. Identify two effects irrigation has on the water cycle and environment. A Irrigation can decrease the Earth's temperature, B. Irrigation can produce run-off that pollutes streams and rivers with fertilizers, C. Irrigation can cause erosion and take nutrients from the soil or D. Irrigation can increase global winds.
Please help and explain well because I really don't understand.
Answer:
A and C
Explanation:
what are at least 6 compounds of potassium ?
Answer:
nitrate, carbonate, chloride, bromide, cyanide, and sulfate.
Explanation:
Answer:
Chloride CL, Potassium hydroxide KOH, Potassium chloride KCI, Potassium nitrate KNO3, Potassium carbonate K2CO3, Sulfate SO²⁻ ₄
Explanation:
In two to four sentences, explain how you ranked the plants from most desirable to least desirable. Be sure to cite evidence from the data to support your rankings.
Answer:My plant rankings could protect the dunes because my plant rankings show most desirable plants and least desirable plants. Many people could use my plant rankings for saving dunes because when you look at the ranking and if you are trying to save a dune you would use the most desirable plants out of the seven plants.
Explanation:
Plant rankings, that include the best and least desired plants, might help to protect the dunes.
What do you mean by Dunes?A dune is a sand mound that the wind has created, typically near a beach or in a desert.
When wind drives sand into a protected region behind an obstruction, dunes are created. Sand particles build up, creating dunes. There is a slip face and a windward side to every dun.
Since you would use the top-ranked plants from the list of seven if you were attempting to save a dune, many people may benefit from using my plant rankings.
Sand that is carried inland and dumped above the high tide mark forms coastal sand dunes.
This is then contained by seaside objects, allowing specialised dune-building grasses to develop and ascend through further layers of sand.
To learn more about Dunes, refer to the below link:
https://brainly.com/question/13717067
# SPJ2
Which of the following is an example of chemical weathering?
a Frost wedging
b Animal activity
c Plant growth
d Acid rain
Answer:
d acid rain
Explanation:
plz mark brainlyst
Which is not needed for a hurricane to form?
Answer:
strong cold front
Explanation:
help me out hear ples
What is your "Resting Heart Rate" for 1 minute? (it will be a number)
Answer:
The average human heart rate goes from 60 to 100 beats in a minute, so that'll be the main averagepoint.
help please thank u !!
Which of the following is the best example of chemical weathering?
a Limestone rocks dissolving in water
b Plant roots growing through concrete and cracking it
c Waves carrying sand away from a beach
d A large rock splitting into pieces because of ice
Answer:
A
Explanation:
The other answers are talking about weathering and erosion
Determine the number of atoms in the following chemical formulas. Make sure you list the elements, how many atoms of each element, and how many total atoms. Numbers 1 and 6 have been completed as examples.
8NaCl = 8+8=16 (To find the total number of atoms add the total number of atoms)
Na=1x8=8 (remember to multiply the subscript by the coefficient)
Cl=1x8=8
H₂SO₄ = _______
H=
S=
O=
4KNO₃ = _______
K=
N=
O=
CaCl₂ = _______
Ca=
Cl=
3C₂H₆ = _______
C=
H=
If a solution contains all the solute it can hold at a given temperature, it is said to be ________________
A.) dilute
B.)saturated
Which of the fallowing would be a good that could be scientifically investigated
Which statement describes the condition in which diamonds form?
A. They grow underground, in most regions of Earth
B. They form as water evaporates on the shore any body of water
C. They form deep underground, in certain areas that are under a great deal of pressure
D. They form as water evaporates on the shores of very salty bodies of water
Please help me I will give you the brain thing and extra points. image below part
Answer:
The answer is D, when H2S gas is bubbled into a lead acetate soulution, a precipitate forms
Explanation:
This is because a physical change is when it changes but doesn't turn into a new substance. A chemical change is when it transforms into a completly new substance. Hope this helps!!! :)
A map. The map shows the physical features of the Fertile Crescent. The Fertile Crescent begins at the northern end of the Persian Gulf, continues north and west following the Euphrates River and Tigris River, and narrows down the western coast of the Syrian Desert ending in Upper Egypt. The empires of Mesopotamia, Akkad, Babylonia, and Sumer are within the Fertile Crescent. East of Sumer are the Zagros Mountains. Use the drop-down menus to identify the physical features on the map. The area south of the Fertile Crescent is the . The body of water that crosses the Fertile Crescent is the . One body of water that borders the Fertile Crescent is the . One physical feature located east of the Fertile Crescent is the .
Answer:
The Persian Gulf and the Tigris and Euphrates
Explanation:
Answer:
It’s syrian desert, euphrates river, persian gulf and zagros mountains
Explanation:
i got it right
Which of these events leaves small pieces of rocks in new places?
a Deposition
b Weathering
c Erosion
d Oxidation
Answer:
c.
Explanation:
PLEAS DO ASAP!!!!!!
An angiosperm is a plant that has flowers and fruits with _________
in them.
Answer:
Seeds
Explanation:
Took the test
An angiosperm is a plant that has flowers and fruits with seed in them.
What is an angiosperm ?Angiosperms are plants that produce flowers and seeds in the form of fruits. With approximately 300,000 species, they are the kingdom Plantae's largest and most diverse group. Angiosperms account for roughly 80% of all known living green plants.
Vascular plants are angiosperms. They are made up of stems, roots, and leaves. Angiosperm seeds, unlike gymnosperm seeds such as conifers and cycads, are found in a flower. Angiosperm eggs are fertilized and grow into seeds in an ovary, which is usually found in a flower.
Another similarity is their ability to produce secondary growth. Angiosperms produce flowers and fruit with seeds within ovaries, whereas Gymnosperms produce seeds in cones.
Thus, An angiosperm is a plant that has flowers and fruits with seed in them.
To learn more about an angiosperm, follow the link;
https://brainly.com/question/29250052
#SPJ6
5. How does skin keep germs from getting in your body? (1 point) Cells have many layers to protect us.
6. How do the students enter the lower layers of Arnold’s and Pheobe’s skin? (1 point)
7. Your body is made of living cells that _________ and ________________. (2 points)
8. In which organ do the students discover that Sea Weedies are actually orange in color? (1 point)
9. The ________________ is the organ that absorbs all the good things and nutrients from the food we wat, and transports it to the blood stream. (1 point)
10. The __________, also made of cells, move food into the ________________________. (1 point)
11. What are some of the different types of body cells that Ms. Frizzle lists (at least 3)? (3 points)
12. As Ms. Frizzle says, “We are what we ____!” What does she mean by this phrase? (2 points)
13. Roughly how long would it take for new skin cells to regenerate and grow from the bottom layers, then reach the surface of the skin? (1 point)
Answer:
5. By having many layers of skin cells, you skin acts as a protective barrier to prevent unnecessary items from entering your body. It is your body’s first line of defense!
6. Through a hair follicle
7. grow and divide
8. inside the stomach
9. small intenstine
Explanation:
I'm in need of help! Thanks.