2 years ago

Why is air part of the atmosphere?

Biology

2 answers:

sineoko [7]2 years ago

8 0

Answer:

The atmosphere protects life on earth by shielding it from incoming ultraviolet (UV) radiation.

jenyasd209 [6]2 years ago

7 0

Answer:

Parts of the Atmosphere

<h3>We live at the bottom of an invisible ocean called the atmosphere, a layer of gases surrounding our planet. Nitrogen and oxygen account for 99 percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute portions</h3>

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What concept developed by Malthus influenced Darwin? A. the principle of scarce resources B. the principle of natural selection

satela [25.4K]

the princpal of natural selection

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3 years ago

In an experimental set up, starch is placed in dialysis tubing and suspended in water. When lodine is added to the water, over t

Anettt [7]

Answer:

c. The starch stayed in the bag and the iodine leaked into the bag and the reacted with it, turning the solution black.

Explanation:

According to the given information, the solution inside the dialysis tubing has starch while water present outside has iodine. The color of the water present outside the dialysis tubing does not change which means that starch did not leak out of the bag and stayed in the bag itself. On the other hand, the starch solution present inside the bag turned black representing the fact that iodine entered the bag. The reaction of starch with iodine produces a blue-black color.

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3 years ago

True or false? <br> Density is equal to the mass of an object divided by its volume.

kramer

Answer:

True

Explanation:

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p = m/v

density = mass ÷ volume

4 0

3 years ago