the first one is a mollusca
Answer:
B. An Estuary
Explanation:
it is a coastal body of water surrounded by land
I think A is the answer its hard to explain but i hope this helped.
The answer is water vapor.
Water is presented in the form of tiny gas particles called water vapor in the atmosphere. The clouds are formed when this invisible water vapor in the atmosphere condenses onto microscopic particles (dust, dirt,...).