Answer:
1. A SOLAR PANEL is a tool used to capture the energy in sunlight.
A solar panel is defined as a tool or panel designed in a way that absorbs the sun's rays. This energy from sun is used for generating electricity or heating. These are used for personal, commercial and industrial uses also.
2. Recycling aluminum cans and taking shorter showers are two ways to practice the CONSERVATION of natural resources.
Conservation of natural resources is a very deep and vast field where various measures are taken to save the natural resources. Taking shorter showers will help in saving water and recycling objects can help in saving natural metals that are found in soil and rocks.
3. Some plastics are made from corn. These plastics are biodegradable. This means that plastics made from corn will DECOMPOSE FASTER than regular plastic.
Polylactic acid or PLA is a plastic substitute made from fermented corn starch. This proved to be a good alternative to traditional petroleum-based plastics. These can decompose faster unlike regular plastic that takes many years to fully decompose.
