1. Halogen
2. Metal
3. Non metal
4. nobel gas
There are not several examples of thermal equilibrium, but only one case: Equal temperature everywhere and constantly along time, with no heat transfer. ... Then, leave the time pass and any inner temperature gradient will disappear by inner heat transfer until temperature is uniform and constant.
after careful thinking and research and reading i am pretty confident its D
but dont take that answer because its pretty sketchy. so wait till someone else answers, because C also fits into the equation at some point. but yeah mainly D
The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis.
