The source of energy shown in the image is (renewable, non renewable, polluting) a drawback of building a dam is that (it will destroy ecosystems, it requires fossil fuels, it won’t be useful for irrigation)

First blank: renewable

Second blank: destroy ecosystems

Explanation:

Dams are man-made structures that are used to store water for multiple purposes like irrigation, supplying water to an area and power generation. They are also used as a flood control measure.

However, as it is a man-made structure, it can also alter natural habitats and ecosystems. Dams collect water, which means it floods a large area, destroying the ecosystem that used to exist. Also, dams also disturb the natural flow of the river, which many animals and plants rely on. This can be harmful to them.

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy

carbon atoms, hydrogen, oxygen, and nitrogen.