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kipiarov [429]
3 years ago
8

How do fossil fuels play a role i the carbon cycle?

Biology
1 answer:
Llana [10]3 years ago
6 0
Plants that die and are buried may turn into fossil fuels made of carbon like coal and oil over millions of years. ... When humans burn fossil fuels, most of the carbon quickly enters the atmosphere as carbon dioxide. Carbon dioxide is a greenhouse gas and traps heat in the atmosphere.

This was copied from google?
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In the exercise-depression study by Blumenthal et al. (the SMILE study), which of the treatments had the best success when consi
vodka [1.7K]

Answer:

In the exercise-depression study by Blumenthal et al. (the SMILE study), which of the treatments had the best success when considering the percentage of individuals who had either recovered or at least partially recovered at a 6-month follow-up period? B. Exercise group.

Explanation:

Exercise has different depression-reducing effects. It enables the body to producte endorphins that reduce sensations of pain. Moreover, it changes the  neurotransmitter levels associated with depression (for example, norepinephrine) and it developes a sense of mastery and self-control through regular practice. <em>The SMILE study concludes that aerobic exercise on MDD remission extend the benefits</em> and it might be better than the benefits of antidepressant use.

5 0
3 years ago
What kind of bonding occurs between carbon atoms, allowing carbon to form stable molecules?
brilliants [131]

Answer:

The correct answer is single,double and triple covalent bonds .

Explanation:

A carbon atom can form a single bond with another carbon atom example ethane.

A carbon atom can form a double bond with another carbon atom example ethylene

A carbon atom can form a triple bond with another carbon atom example acetylene.

 But during the formation of  Carbon carbon single bond or double bond or triple bond the valency of carbon atom that is 4 is always maintained.

5 0
4 years ago
What structures are found within the nucleus?
amm1812

Answer:

The eukaryotic cell nucleus. Visible in this diagram are the ribosome-studded double membranes of the nuclear envelope, the DNA (complexed as chromatin), and the nucleolus. Within the cell nucleus is a viscous liquid called nucleoplasm, similar to the cytoplasm found outside the nucleus.

5 0
3 years ago
Derived from a 6 membered ring. Contains Cytosine, Thymine, and Uracil.
dybincka [34]

Answer:

b. Nucleotides  

Explanation:

Nucleic acids are examples of structures formed from nucleotides. And in relation to the composition of DNA, we have the formation of the largest cellular macromolecule, all formed by nucleotides.

The nucleotide is a group formed by the association of 3 molecules - a nitrogen base, a phosphate group and a pentose glycide. Thus, we may have variations within these ligands, such as: in DNA we have the presence of pentose deoxyribose, while in RNA we have the presence of pentose ribose.

The nucleotides have differences in relation to its nitrogen base, which can be purine or pyrimidine. Purine bases vary in Adenine and Guanine, while pyrimidine bases are classified in Thymine, Uracil and Cytosine. Purine and pyrimidine bases are complementary and each have specific binders. Thus, we have that the purine base Adenina, binds with the pyrimidine bases Timina and Uracila, while the base Guanina binds exclusively to Cytosine and vice versa.

5 0
3 years ago
What is the unit for frequency?
Marina86 [1]
If you are talking about frequency in terms of waves, it is in seconds^-1
4 0
3 years ago
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