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Bumek [7]
3 years ago
10

which statement correctly describes how the amount of ofoxygen in the earth’s atmosphere has changed over time?

Biology
1 answer:
Kay [80]3 years ago
3 0

Answer:

Based on the relative volumes of the gases in Earth’s atmosphere, nitrogen is actually more than 3 times more than oxygen. Because the troposphere is the lowest atmosphere layer, it contains 75 percent of the atmosphere’s mass.. From largest to smallest, Earth’s atmosphere composition contains nitrogen, oxygen, argon, CO 2 and trace gases.

Explanation:

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photoshop1234 [79]
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Andrew is describing the water cycle in three steps, as shown in this simple model. Which statement belongs in the third region?
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4 0
3 years ago
What is the volume of 0.25 mol of ammonia gas at 1.00 atm and 273 K? (R= 0.0821 Latm/molK)What is the volume of 0.25 mol of ammo
ICE Princess25 [194]

Answer:

5.6L

Explanation:

Given parameters:

number of moles  = 0.25mol

pressure on gas  = 1atm

temperature  = 273K

Gas constant R = 0.0821Latm/molK

Unknown:

Volume of gas  = ?

Solution:

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It is mathematically expressed as;

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          T is the temperature

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All the parameters are in the appropriate units and we simply solve for the volume of the gas;

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4 0
3 years ago
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Sloan [31]

Answer:

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Explanation:

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Finally, the two Okazaki fragments have to be joined, it is necessary to link the 3'OH end of a fragment with the 5'P of the next fragment. This work of sealing and joining the successive fragments is done by Ligase.

4 0
4 years ago
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aniked [119]
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