Question

in 9 days earth picks up (7.2×10)^7 kg of dust from the atmosphere how much dust will pick up in 20 days​

Answer 1

Step-by-step explanation:

9 days = 7.2 x 10⁷ kg

20 days = ?

= (20 x 7.2 x 10⁷) / 9

= 16 x 10⁷ kg of dust earth will pick up in 20 days