A cloud is made up of a. dust and water vapor b. rain c. water vapor only d. dust only

dust and water vapor

Explanation:

When water evaporates and condenses into clouds it combines with microscopic dirt and dust particles high in the atmosphere which give the water something to connect to as it condenses into raindrops.

A

Explanation:

clouds are made of dust and water vapor

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

answer; cnidarians;