What would happen to the convection currents in the mantle if earths interior cool down

If the earth’s interior cools down then the convection currents will not be produced in the mantle and geologically leads to dead earth.

Explanation:

Convection currents is the process by which the heated fluids will be made to float on the surface while the cooler fluids will get precipitated in the mantle. The high amount of heat in the earth's crust leads to transfer of them as magma on the surface of the mantle and then it will lose its energy and precipitate as tectonic plates.

So, convection currents leads to the movement and production of new tectonic plates. If the earth's interior gets cooled down, then the creation of convection currents will cease leading to a geologically dead earth.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.