What is alternative energy?

Energy resource are of two types. Those resources that are formed over millions of years and cannot be replenished are known as non-renewable millions of years and cannot be replenished are known as non-renewable energy resources, such as coal, natural gas, and crude oil. Those resources that can be replenished are known as alternative energy. Although nuclear energy too is inexhaustible, it is not considered an alternative energy resource because of the risks associated with it.

What does the term 'ecological agriculture' mean?

A lot of things that are commonly used in commercial farming are prohibited in ecological agriculture. In ecological agriculture, fields are not sprayed with chemical pesticides, and artificial fertilizers are not added to the soil. Animals are raised in ways appropriate for maintaining the health of the species. For example, hens and not crammed inside cages for their entire lives. The mostly feed on grains grown organically. Moreover, all animals are fed with 'organic food'. All these measures require a lot of space and time to be completely successful. Hence, organic products are mostly expensive.

Apart from petrol, what other products are made from crude oil?

Apart from petrol, diesel and crude oil serve as raw materials for the manufacture of many types of plastics. Therefore, waste plastic products are separated from garbage and 'recycled' to produce new plastic objects. However, this process consumes a lot of energy. In fact, we can better protect the environment by not buying things made of plastic. We should go for shopping taking our own bags, and should buy unpacked things; in this way, less garbage will be generated.

How can we protect the rain forests?

It is not easy to protect rain forests. However, the choices we make when buying various things of daily use can indirectly protect and conserve the rain forests. For example, we should buy only those wooden products that carry seals or labels mentioning that the material used for manufacture is not hazardous to rain forests. Another important consumer choice is meat. We should check labels to buy only that meat which is not obtained from cattle raised on pastures formed by clearing rain forests.

(all image taken from google image so credit goes to google for educational purpose)