Which of the following general statements about earth's atmosphere is not true?
a. atmospheric scattering of light explains why our daytime sky is bright and blue.
b. the nitrogen and oxygen in earth's atmosphere keep the surface pleasantly warm.
c. even in low-earth orbit, some atmospheric gas is still present.
d. atmospheric pressure decreases with altitude.

b.The nitrogen and oxygen in Earth's atmosphere keep the surface pleasantly warm.

Explanation:

Hello,

Based on the behavior of the Earth's atmosphere, it is widely known that the surface temperature depends on the altitude since the Earth's nucleus has the capacity to warm the outer surface as it is closer to it. In such a way, the warmness of the surface depends on the nucleus rather than the presence of nitrogen and oxygen.

Best regards.

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).