State whether the following statement is true or false :
Short-sightedness can be cured by using concave lens.

State whether the following statement is true or false: Human excreta can be used in biogas plants.

State whether the following statements are true or false : Earthquakes can be predicted in a advance.

State whether the following statements are true or false. Malaria can be controlled by destroying the alternate host. A. True B. False

State whether the following statements are true or false. Correct the false statement: