B. Exosphere
Prefix "exo" means outside, or outer. So, the exosphere is the outer layer of the Earth, which is not a part of the water cycle.
A is correct. Potential energy decreases and turns into kinetic energy.
Explanation:
The given data will be as follows.
7 kg of dimethyl terephthalate + 5 kg of Ethylene glycol = 12 kg of product
Formula for weight average number is as follows.
=
Molecular weight of DMT = 198.21 g/mol
Molecular weight of ET = 62.07 g/mol
Hence, calculate the weight average number as follows.
=
= (115.62 + 25.862) g/mol
= 141.482 g/mol
Since, efficiency is given as 50% = 0.5
0.5 =
=
= 70.741 g/mol
As, =
=
= 24 g
Thus, we can conclude that the amount of given polymer is 24 g.
D. Both particles and high energy radiation