Answer:
1. The renewable sources of energy are the alternative sources of energy that should be used in order to maintain the resources of fossil fuel. Thus, the given statement is true.
2. A type of micro-irrigation approach in which water is dripped slowly into the roots of the plants is considered as drip irrigation. Thus, the given statement is false as water is saved with the help of drip irrigation.
3. Restricting erosion, disposing of mine waste, and limiting water pollution from the mine helps in maintaining the use of land. Thus, the given statement is true.
4. Deforestation, that is, cutting of trees cannot be considered beneficial in sustaining the lives of trees. Thus, the given statement is false.
