Sam is visiting the desert. He is standing beside a cactus watching a
snake move across the sand. There is a lizard basking in the sun on a rock
nearby. Which of the following correctly identifies the biotic and abiotic
parts of the ecosystem?
Abiotic: Rock, Sand, Sun Biotic: Cactus, Lizard, Sam, Snake
Abiotic: Cactus, Rock, Sam Biotic: Lizard, Sand, Snake, Sun
Abiotic: Cactus, Rock, Sand, Sun Biotic: Lizard, Sam, Snake
Abiotic: Cactus, Lizard, Sam, Snake Biotic: Rock, Sand, Sun

Explanation:

yes that's correct

Answer:

..             ..

O : : C : : O

..             ..

Explanation:

Answer: EH, It was okay.

Explanation:

Answer:

It was so creative to finish up a statistics project with a statistics song- remarkable✌

Explanation:

Answer:

chromatography: Involves solvent separation on a solid medium. distillation: Takes advantage of differences in boiling points. evaporation: Removes a liquid from a solution to leave a solid material. filtration: Separates solids of different sizes.

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Explanation:

Answer:

D

Explanation:

Mars is nearest to Earth

Among the given planets, Mercury would make the closest approach to Earth as it orbits the Sun. This is because Mercury has the smallest average distance from the Sun, with a value of 0.387 astronomical units (AU).

The distances of the planets from the Sun are measured in astronomical units, where 1 AU is the average distance between the Earth and the Sun. With a distance of 0.387 AU, Mercury's orbit is closer to the Sun compared to the other planets listed.

As Mercury orbits the Sun, its path occasionally brings it closer to Earth when both planets align in their respective orbits. This phenomenon is known as a close approach or inferior conjunction. During this alignment, Mercury appears closer to Earth in the night sky, making it the planet that would make the closest approach to Earth among the given options.

Hence, the correct option is option A.

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Answer:

Size of cation is lower than neutral atom because as a particular atom looses electron, no of proton become more than no of electron and attraction forces increases so radius decreases.

Answer:

Deep ocean trenches, volcanoes, island arcs, submarine mountain ranges, and fault lines are examples of features that can form along plate tectonic boundaries. Volcanoes are one kind of feature that forms along convergent plate boundaries, where two tectonic plates collide and one moves beneath the other.

Explanation:

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Answer:

You can explore a variety of things in Alaska. There are so many activities you could do such as visiting museums and hiking and tons more. The thing about this is that it is out in the wilderness which makes it more exciting and cooler to see nature more than it does in new zealand. The climate can be pretty chilly in Alaska but it is way much fun to see tons of glaciers. New zealand has eathquakes frequently whilst Alaska doesn't.

Answer:

H2C2O2 + 2KOH ----- K2C2O4 + 2H2O

Answer:

1618.2

Explanation:

235+75=310×75=1618.2

Answer:

53.8g

Explanation:

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Answer:

D. Half-life

Explanation:

Half‐life is the amount of time it takes for approximately half of the radioactive atoms in a sample to decay into a more stable form. Every radioactive element has a different half‐ life.

Answer:

Q = 8100 J.

Explanation:

Hello there!

In this case, according to the given information, we can infer this is a question about calorimetry, and we can use the general heat equation to solve this one:

[tex]Q=mC(T_2-T_1)[/tex]

Thus, we plug in the given mass, specific heat and temperatures to obtain the energy involved in this heating process:

[tex]Q=400g*0.11\frac{cal}{g\°C} (65\°C-21\°C)\\\\Q=1936cal[/tex]

Which converted to Joules turns out to be:

[tex]Q=1936cal*\frac{4.184J}{1cal} \\\\Q=8100J[/tex]

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Answer:

I know for a fact the correct answer is B

Answer:

A

Explanation:

BECAUSE plants use carbon dioxide for photosynthesis.

Answer:

The temperature of the balloon is 46.34 K.

Explanation:

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:

P * V = n * R * T

In this case:

Replacing:

0.76 atm* 10 L= 2 moles* 0.082 [tex]\frac{atm*L}{mol*K}[/tex] *T

Solving:

[tex]T=\frac{0.76 atm* 10 L}{2 moles* 0.082\frac{atm*L}{mol*K}}[/tex]

T= 46.34 K

The temperature of the balloon is 46.34 K.

Answer:

Metals have a property by which they can be beaten into thin sheets. This is called malleability.

Explanation:

one example is silver metal beaten to make silver foil used for decorating. On being struck hard, the metals produce a ringing sound. Due to the Metals that are used for various purposes, from making wires and sheets.

Answer:

i think by their salinity (the saltiness or amount of salt dissolved in a body of water)

Explanation:

Water salinity is measured by passing an electric current between the two electrodes of a salinity meter in a sample of water.

Answer: The volume of the balloon up there is 6.192 L.

Explanation:

Given: [tex]V_{1}[/tex] = 1.80 L,    [tex]P_{1}[/tex] = 785 mm Hg (mm Hg = 0.00131579) = 1.032 atm

[tex]P_{2}[/tex] = 0.300 atm,       [tex]V_{2}[/tex] = ?

Formula used to calculate volume is as follows.

[tex]P_{1}V_{1} = P_{2}V_{2}[/tex]

Substitute the value into above formula as follows.

[tex]P_{1}V_{1} = P_{2}V_{2}\\1.032 atm \times 1.80 L = 0.300 atm \times V_{2}\\V_{2} = 6.192 L[/tex]

Thus, we can conclude that the volume of the balloon up there is 6.192 L.

When two surface come in contact and rub each other a frictional force causing them s deformation and this leads to a voltage giving rise to a static charge.

Static charge is developed within a body temporarily with an induced polarization. These charges are not moving and set into a pole in the material.

When two materials rub against each other in which one is a conductor and other to be an insulator, they will attract by the induced polarization. Rubbing causes the free electrons in the condutor to be transferred towards the insulator.

This will cause a deformation that, the random charges in the material get polarized where the electrons in the insulator will repel to the opposite pol and positive charges will align in a pole close to the condutor.

This charge separation causes the positive pole of the insulator gets attracted into the conductor surface. Hence, there forms a static electricity by the passage of electron.

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Answer:

Though a hydrogen atom has only one electron, it contains a large number of shells, so when this single electron jumps from one shell to another, a photon is emitted, and the energy difference of the shells causes different wavelengths to be released... hence, mono-electronic hydrogen has many spectral lines.

Explanation:

thank me later

Answer:

O 9 carbon atoms, only

Explanation:

Prefix: non- simply means 9.

Suffix: -ene means double bond, -yne means triple bond, and -ane means single bonded carbons.

it is A it got to be A)-4k

Explanation:

Answer:

1) Plants that fix nitrogen, such as peas and other legumes, improve soil quality for future vegetables planted in the same bed. (2) Alternating shallow-rooted and deep-rooted plants in a given area draws nutrients from the soil at varying depths.

Answer: potassium and rubidium

Explanation:

1) The group 1 of the periodic table contain six elements namely Lithium(Li), Sodium(Na),Potassium(K),Rubidium(Rb),Cesium(Cs) and Francium(Fr). These metals are called alkali metals because they form alkalies( i.e. strong bases capable of neutralizing acids) when they react with water.

2) The heavier alkali metals (K, Rb, and Cs) react so vigorously that they invariably explode.

3) This trend, which is not consistent with the relative magnitudes of the reduction potentials of the elements, serves as another example of the complex interplay of different forces and phenomena—in this case, kinetics and thermodynamics.

Answer:

SOrry it makes me writer sotufjksankdn

Explanation:

Answer:

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Explanation:

Answer:

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Answer:

0.917

Explanation:

Answer:

0.917

Explanation:

Just took the test

Answer:

C) are a result of hydrogen bonding

Explanation:

Cohesion, surface tension, and adhesion are the properties of water molecules that are a result of hydrogen bonding.