Answer:
The number of protons in the nucleus of an atom determines an element's atomic number
Salutations!
What component of Earth’s atmosphere exists entirely as a result of photosynthesis?
Oxygen is the component of Earth's atmosphere that is existed entirely as a result of photosynthesis. Photosynthesis is a procedure that plants and other different organisms use sunlight to make their food. It is a chemical procedure.
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Answer:
This exercise is incomplete, missing the value of k (decay constant), which is equal to 4x10⁻⁸s⁻¹ at 25°C
The answer is 0.549 years
Explanation:
Given:
first order of reaction
k = 4x10⁻⁸s⁻¹
For a first order of reaction, the half-life time for the degradation of DDT is equal to:

G1 phase, S phase, and G2 phase