Question

1. How can aerial animals fly ?
2.Write the name of four pure substances

Answer 1

Answer:

1)Unlike most air vehicles, in which the objects that generate lift (wings) and thrust (engine/propeller) are separate and the wings remain fixed, flying animals use their wings to generate both lift and thrust by moving them relative to the body.

2)diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose)

Answer 2

Answer:

your answer dear...........