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11Alexandr11 [23.1K]
2 years ago
14

Please help me what is the atmosphere?

Biology
2 answers:
KATRIN_1 [288]2 years ago
8 0

Answer:78% nitrogen 21% oxygen 0.9% argon and 0.1% other gases

Explanation:

harina [27]2 years ago
4 0
An atmosphere is a layer of gas or layers of gases that envelope a planet, and is held in place by the gravity of the planetary body.
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How does having one sickle cell gene usually affect a person?
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A person who receives a gene for sickle cell disease from one parent and a normal gene from the other has a condition called "sickle cell trait." Sickle cell trait produces no symptoms or problems for most people. Sickle cell disease can neither be contracted nor passed on to another person.

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What type of a consumer is krill?
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3 years ago
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Predict the dominant type of bonding by considering electronegativity.
Vlad1618 [11]
If the atoms that are bonding have identical electronegativities, then it's a completely nonpolar covalent bond. This doesn't happen in the real world unless the two atoms are of the same element. In a practical sense, any two elements with an electronegativity difference less than 0.3 is considered to be nonpolar covalent.
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7 0
3 years ago
Explain why biological macromolecules are important for everyday life
siniylev [52]
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4 0
3 years ago
Which biome, typical of Africa, is home to many grazing animals
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B. Savanna

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Hope this helped, Have a Great Day!!

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