Question

the ozone layer gas ad a filter and absorb the ultra violet rays from the sun​

Answer 1

Explanation:

D] 1) A packet contains cards numbered from 0 to 30 and mixed thoroughly.

If a card is drawn at random from the packet, find the probability that the number on the card

is i) a perfect square number.

ii) a multiple of 7

Answer 2

Explanation:

In the stratosphere, ozone is created primarily by ultraviolet radiation. ... When an ozone molecule absorbs even low-energy ultraviolet radiation, it splits into an ordinary oxygen molecule and a free oxygen atom. Usually this free oxygen atom quickly re-joins with an oxygen molecule to form another ozone molecule.