Answer:
Toxic chemicals is a major cause of water pollution. In most cases, the toxic chemicals came from the residual from production process after companies done making their product
Explanation:
<span>#1) What ecosystem is described in the paragraph above?
Answer: The ecosystem that is being described in the paragraph above is Tundra. The reason being that the flora and fauna described are from cold climates. Also because the snow leopards are usually found on the tops of mountains, where the climate is cold and windy and rainfall is adequate.
<span>I hope it helps, Regards. </span></span>
I think, materials collided due to strong gravitational forces..
I believe the answer you're looking for is fertilization. :D