If rich countries spend money on green industries instead of building military machines and making nuclear weapons, many widespread pollution concerns will gradually disappear.

When burning coal, it not only consumes oxygen in the house, but also emits toxic gases.

Thirdly, obviously, finding alternative energy sources is very important for the steady development of our economy.

Fourth, solar cells can absorb sunlight and convert it into electricity.

If the temperature on the earth continues to rise year by year, the polar ice caps will begin to melt, and half of the buildings in coastal cities may disappear under the splashing waves.

Because these creatures are very small, and they are often hidden under leaf cover plants, which are invisible to the naked eye.

He finally collapsed at work because of atomic radiation.

There is obvious evidence that the heavy pressure of work is related to some physical problems.

There is nothing to add. sorry