identify the different factors that pollute the water body. what changes take place in the composition of a water body and the biotic environment of it. ships , boats and submarines are different means of transport in the water. how these vessels are made so that they are strong and can withstand the effects of water. the water offers resistance to their motion. suggest some ways for their faster movement in water.
Answers
Answered by
4
Answer:
we should reduce some weight , so they became light weight and flow easily on water.
we use fins like shape on both sides of submarine, easily swim in water.
The different factors, polluted water bodies are residue comes from factories, acid rain, sewage come from homes, etc.
the composition of water bodies will becomes less and, it also becomes acidic by acid rain.
the composition of biotic environment also reduces because if biotic components like trees not get water they will decrease in numbers which directly effect on biotic environment.
. Here is answer, hope it helps you guy.
Similar questions