3 years ago

Which reason best explains why living things need carbon?

Biology

2 answers:

Butoxors [25]3 years ago

5 0

Carbon is a source of energy

mojhsa [17]3 years ago

3 0

Carbon is an important component in living things as it is present in the food of living things in the form of saccharides such as glucose and polysaccarhides such as starch. Hence the answer to this problem should have to be A. Carbon is a source of energy.

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5. How is the scientific theory of evolution supported by the comparison of the skulls and skeletons of mod

andriy [413]

Answer:

i think it is c

Explanation:

7 0

3 years ago

Which statement describes potassium-argon dating?

Fiesta28 [93]

Answer: Potassium-40 decays into argon gas over time.

Explanation: Potassium-argon dating is a dating method used to determine the age of sedimentary rocks by comparing the proportion of K-40 to Ar-40 in a sample of rock, and knowing the decay rate of K-40.

Potassium-40 undergoes decay following first order kinetics as given below:

$_{19}^{40}\textrm{K}\rightarrow _{18}^{40}\textrm{Ar}+_{0}^1e$