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Ksju [112]
2 years ago
6

What are two crucial functions of the carbon cycle?

Biology
1 answer:
Stolb23 [73]2 years ago
8 0
A. Keeps carbon dioxide from escaping atmosphere
and slows diffusion
B. Prevents bicarbonate formation and slows
photosynthesis
C. Provides fossil fuels and recycles carbon dioxide
D. Prevents carbon dioxide from entering
atmosphere and dissolves fossil fuels










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4. What is meant by the fact that water is a "polar" molecule?
Ksju [112]

Hello!

A polar molecule is where one of the atoms in a molecule has a slight positive charge, and another has a slight negative charge, due to the unequal sharing of electrons.

Water is one of these molecules - the electrons spend more time around the oxygen atom in the center, and less around the hydrogens, so the hydrogen atoms have a slight positive charge, and the oxygen a slight negative.

Therefore, your answer is B, water has a slight negative and a slight positive charge at opposite poles.

Hope this helps!

3 0
3 years ago
The stark contrast between affluent and poor societies in today's world is often called the _______.
topjm [15]
<span>The stark contrast between affluent and poor societies in today's world is often called the,

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8 0
3 years ago
Which of the following is homozygous dominant? a AA b Aa c aa
GarryVolchara [31]

Answer: a). AA

Explanation: Every trait is controlled by at least a pair of gene. Genes have different forms known as alleles. Alleles can be dominant or recessive. A dominant allele expresses itself in the presence of a recessive allele and masks the effect of a recessive allele. A recessive allele cannot express itself in the presence of a dominant allele and it's effect is masked by a dominant allele. Dominant alleles are usually written in upper cases such as A, T, while recessive alleles are usually written in lower cases such as a, t. The two alleles that determines a trait is called a genotype. A genotype can be homozygous if the two alleles are identical such as in AA or aa

and can be heterozygous if the two alleles are not identical such as in Aa, Tt.

6 0
2 years ago
The energy in most ecosystems comes from
kakasveta [241]

Answer:  B

Explanation:The energy needed by living things comes from the sun. Every ecosystem depends on green plants to trap the energy in sunlight and change it into chemical energy. The process by which green plants convert the sun's energy is called photosynthesis.

4 0
3 years ago
Read 2 more answers
MARK AS BRAINLIEST
stellarik [79]

Explanation:

Amino acid is made of an Amino group , a Carboxyl group And an R group . there is also an additional H there .

6 0
3 years ago
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