Explanation:
it is made up of more than one simple machine...think compound sentences are multiple simple sentences together so compound machines are multiple simple machines together
Primary succession is when, for example, a volcano explodes and there is nothing left and even the soil is ruined. It would take at least a hundred years for the land to be like it was before the volcano erupted. Secondary succession is when, for example, a wild fire happens but the soil is not ruined. It would take at least 25-50 years for the land to be like it was before the fire.
C clouds
Clouds form when the invisible water vapor in the air condenses into visible water droplets or ice crystals
You need to set it up write so you don't ruin your eye siggt