Lateral meristem is present on the lateral sides of stems and roots. It helps in increasing the girth of stem and root.

(i)P is a compound. (ii) X and Y are compounds. (iii)X and Y are elements. (iv)P has a fixed composition.

Slope of velocity time graph gives acceleration. Because slope of the curve = v/t, where v/t = acceleration.

When a horse pushes the ground backwards (as action), then ground forces back the horse (as reaction) in forward direction. Due to this, the horse is able to pull a Tanga in forward direction.

If, m = 1 kg, F = 1 N, then, F = ma Or, 1 N = 1 kg x a Or, a = 1 N/ 1 kg = 1 kg – ms⁻²/ 1 kg = 1 ms⁻²