Question

1. Aluminium is present in group 3 and period 3.
2. variation create evolution.
3.concave lens always give real and inverted image.
4. sun is the main source of energy from all object in the universe.

•Following statement is true or false​

Answer 1

Explanation:

(1) true

(2) true

(3) this to I don't know

(4) true