Cold air usually pushes warm air because cold air has a _____________.

A. higher density
B. lower density
C. lower pressure
D. higher molecule speed

Answers

Answer 1
Cold air usually pushes warm air because cold air has a HIGHER DENSITY

Related Questions

hiw has human trafficking displayed itself in communities.

Answers

Explanation:

Human trafficking is causing a serious threat.It is the trade of humans,most commonly for the purpose of sexual slavery,forced labour or commercial sexual exploitation for the trafficker or others.The business is started with foreign employment,marriage,travelling to beautiful cities etc and such illiterate and poor people are lured by them.Thus,it has displaced a negative impact and a questioning glance to the people about human kind and humanity.

5. Radioisotopes
Radioisotopes are isotopes that are radioactive—they spontaneously emit energy (or radiation) when their nucleus breaks down. The term for this process is radioactive decay. When the process involves a change in the number of protons in the nucleus, the atom can change into another element. In one type of radioactive decay, a neutron in the nucleus splits into a proton and an electron. This split decreases the number of neutrons by one and increases the number of protons by one, but since protons and neutrons have approximately the same mass, the mass number stays the same. Since the number of protons changes, the atom becomes a new element.
Carbon-14 has 8 neutrons and 6 protons. When this radioisotope undergoes the radioactive decay process discussed above, it becomes nitrogen-14.
The number of protons in nitrogen-14 is?

Answers

Answer:

7

Explanation:

The number of proton becomes 7 in nitrogen- 14 because there is one proton increase in the nucleus as a result of radioactive decay. There are 6 number of protons and 8 number of neutron in the nucleus of carbon-14 isotope. when the radioactive decay occurs, there is decrease occur in neutron number by removing one neutron and number of proton increases in the nucleus due to addition of one proton so that's we can say that the number of proton in nitrogen-14 is 7.

1. Would the pollution problems caused by cars and trucks be completely solved if they all became electrically powered overnight?

2. Name one challenge we need to overcome by using solar panels

Answers

Answer:

1.This doesn't help COMPLETELY get rid of pollution. It might help lessen the pollution, but it definitely won't solve it, because there are also other things that cause pollution.

2.The main problem with solar power that has stifled its use is the fact that energy production only takes place when the sun is shining. And it won't be beneficial to the countries that aren't really close to the equator ( the middle east) and that might be a problem cause there just might not be enough energy/electricity.

Cilia are involved in the transfer The genetic information from one bacterial cell to another

Answers

Answer:

False.

Explanation:

No, Cilia are not involved in the transfer of the genetic material from one bacterial cell to another. The pili are the structure which is responsible for the transfer of genetic material from one bacteria to another. This transfer can only occur for those types of bacteria that possess a special plasmid that is responsible for the formation of pilus which leads to the transfer of genetic material. If the special plasmid is not present so there will be no tranfer of genetic material from one bacteria to another.

Two parents, both heterozygous (Tt) and tall, are
crossed to produce offspring. What are the possible
genotypes and phenotypes of the offspring?

Answers

Answer:

1:2:1 is the ratio

Explanation:

well if you draw a punnet square you will get TT Tt Tt tt

Answer:

1:2:1 is the ratio

Explanation:

HELP ME PLEASE!!!!!!

Answers

Answer:

C of course

Explanation:

Main idea: In a solar eclipse the moon blocks out the sun.
Which of the following details supports the main idea?
A.
A solar eclipse is magnificent.
B.
The atmosphere of the sun is called the corona.
C.
The moon casts a shadow on the earth.
D.
The moon casts a shadow on the sun.

Answers

C. Since the moon blocks out the sun, this casts a shadow on the earth.

[20 POINTS!!!!!]
which scenario would lead to the biggest increase in rabbit population?
increase in food supply and decrease in predators.

increase in food supply and predators.

decrease in food supply and increase in predators.

decrease in food supply and predators.

Answers

A is the correct answer!Increase in food supply = more food = BIGGER POPULATIONDecrease in predators = more living rabbits = more reproductionThis scenario is VERY bad for the ecosystem and the rabbit population in the long term.

The scenario that would lead to the greatest increase in the rabbit population is increased food supply and decreased predators.

What are predatory animals?

Predatory animals are animals that feed on other animals. They occupy the top of the food chain and are therefore found in smaller numbers. Predators are usually large, agile and adapted for hunting. A good predator is not known just by its size.

With this information, we can conclude that the scenario that would lead to the greatest increase in the rabbit population is increased food supply and decreased predators.

Learn more about Predatory in brainly.com/question/12751629

Rewrite as a simplified fraction. 1.5¯ = ?

Answers

Answer: 1 1/2

Explanation:

Principales of Biotechnology
What are the units you guys have? I want to study them

Answers

Some units includes  Tools and Processes of Recombinant Technology which consists of many topics of DNA, ligase, PCR.

If you are interested in learning about the Principles of Biotech, you could get a headstart on khan academy. It'll help you prepare.


Hi can you help please help me with this

Answers

Answer: D someone running at a constant speed and direction

Explanation:

Which is transported in the xylem of a plant?
A. Dead material
B. Nutrients
C. Chloroplast
D. Blastocysts

Answers

Answer:

B. Nutrients

Hope this helped! :)

At rest the lens of the eye will be more round when the ciliary muscles are contracted true or false

Answers

Answer:

True.

Explanation:

Yes, the lens of the eye will be more spherical when the ciliary muscles are contracted due to tension. When the relaxation occurs in the ciliary muscle , the zonular tension is increased, that causes the lens to be flatten and leads to decrease in optical power while on the other hand, when the ciliary muscle contracts, the tension in the equatorial zonular is increased which causes the central lens surface to become more rounded that leads to increases central optical power.

A hypotonic solution has a lower concentration of solutes than a blood cell. Explain what
happens when a blood cell is placed in a hypotonic solution.

Answers

The blood cell swells with water there by bursting.

6. Define allele, please help me out

Answers

Answer:

allele is the pair of gene controlling the pair of contrasting characteristics

Answer:

each of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.

hope this answer helps you!

3 alternative energy sources
sun, wind, atomic energy
sun, wind , rain
coal, oil, gas
atomic energy, coal, wind

Answers

2. sun, wind, rain
i think it’s that

Proteins are made in organelles called _____.

ribosomes


Golgi bodies


DNA

chloroplasts

Answers

Answer:

Ribosome

Ribosome: a cellular organelle that is responsible for making proteins

Janine’s hands are larger than her father’s hands. Which explanation can account for the difference in hand size between father and daughter?
Janine’s large hands may be the result of a genetic mutation.
B
Janine inherited her mother’s hand size.
C
The difference in hand size may be due to an environmental cause.
D
Though some of the above are more likely than others, all of the above are possible explanations.

Answers

Answer:

D or b

Explanation:

Choose between those

4. Fungi have two modes of reproduction, creating offspring either sexually or asexually. Hov does a fungus carry out asexual reproduction?
a. By producing sperm and egg cells
b. By producing spores
C. By cloning an entire organism
d. By dividing in half to create two separate organisms

Answers

Answer: b. By producing spores

Explanation:

How could heart disease affect other organ systems?

Answers

you'll be getting less oxygen to the rest fo the body, this can cause shortness of breath, swelling in your legs, fluid build up and even kidney and liver damage

hope this helps!!

Leucine biosynthesis occurs in a multistep pathway starting from 2-oxovalerate, and the final product of the pathway (leucine) inhibits the first enzyme involved in the biosynthetic pathway through a process called feedback inhibition. This enzyme inhibition occurs, regardless of whether or not the 2-oxovalerate substrate is bound in the active site of the enzyme. Describe what type of inhibitor leucine is and justify your response.

Answers

Answer:

it is a type of mixed inhibition referred to as 'non-competitive inhibition'

Explanation:

Mixed inhibition occurs when an inhibitor binds to the enzyme in a site different from the active site where the substrate binds (i.e., the allosteric site). The term 'mixed' is because this inhibition is a mixture of competitive inhibition, where the inhibitor competes with a substrate to bind to the enzyme, and uncompetitive inhibition, where the inhibitor binds only to the complex formed between the enzyme and its substrate. In competitive inhibition, the maximal velocity of the reaction (Vmax) does not change, whereas the apparent Km (i.e., the concentration of substrate which permits the enzyme to achieve half Vmax) increases. ​Moreover, in non-competitive inhibition, the Km does not change, whereas the Vmax decreases. Non-competitive inhibition is a special type of mixed inhibition where the apparent Vmax (V app-max) is reduced, while the Km of the enzyme is unaffected.

Help, please. Bio assignment and is due tonight. Population density typically decreases with increasing body size. Why do you think this is the case?

Answers

population density typically decreases with increasing body size. Why do you think this is the case? Smaller animals require less food and others resources, so the environment can support more of them per unit area.
Smaller animals require less food and others resources, so the environment can support more of them per unit area

The frequencies of the color trait among rabbits living in a mountainous area have changed over time. What type of selection most likely occurred?
a. directional
b. disruptive
c. stabilizing
d. sexual

Answers

Question:

The frequencies of the color trait among rabbits living in a mountainous area have changed over time. What type of selection most likely occurred?

a. directional

b. disruptive

c. stabilizing

d. sexual

My answer/thought:

I believe your answer is C. stabilizing. :)

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Hope this helps! if not, correct me. :) if it is, brainliest is appreciated to get to virtuoso

--siveth

what are two different events that occur during metaphase?​

Answers

Answer:

The next two major events that take place in mitosis are the alignment of chromosomes at the center of the cell and the subsequent separation of sister chromatids to opposite mitotic spindle poles. These two events occur in metaphase and anaphase, respectively.

Explanation:

Which cell has the largest problems due to surface area limitations

Answers

Answer:

Terms in this set (217) Thinking about the surface of cells, which of these cells has the largest problems due to surface area limitations? Eukaryotic cells are 10-100 times the size of prokaryotic cells.

may we please hel me​

Answers

Answer: 17. epiglotti. 18. Salt. 19. 37 degrees celsius.  brainliest??

Explanation:

Which mammal is not a marsupial?

anteater
kangaroo
opossum
wallaby​

Answers

i’m pretty sure it’s a!
An anteater is definitely not

How does a medicine like Benadryl (a medicine taken to suppress allergy symptoms) affect the immune system?

Answers

It kills of the virus while strengthening the immune system

Which set of organisms would belong to the Eukarya domain?

Answers

Answer:

All life can be classified into three domains: Bacteria, Archaea, and Eukarya. Organisms in the domain Eukarya keep their genetic material in a nucleus and include the plants, animals, fungi, and protists.

Answer:

All life can be classified into three domains: Bacteria, Archaea, and Eukarya. Organisms in the domain Eukarya keep their genetic material in a nucleus and include the plants, animals, fungi, and protists.

Explanation:

penge like

HELP ASAP HELP.......

Answers

Answer:

energy must equal out

Explanation:

obvious

D


Energy metabolism and obesity

Energy balance occurs when the energy content of food is matched by the total amount of energy that is expended by the body.
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