Answer:
B
Explanation:
B is when they condensate( air to the cloud)
Hope this helps plz hit the crown :D
The second answer, it is durable because it is tested, is the correct answer choice. This is because science cannot be based on opinion or personal philosophy, and science is constantly chaging and being updated as we learn more about our world and the things around it.
Moving molecules with the concentration gradient. Moving molecules against the concentration gradient.