1)Two buses A and B are moving in opposite directions with the velocity of 20m/s and 15m/s respectively, find the relative velocity of A with respect to B. 2)Molecular weight of CO2.

3)Write any three advantages of bacteria.

4)Write any 2/3 causes for extinction of wild plants and animals.​

Please answer me this question fast
PLEASE PLEASE

Stay Safe, Stay Healthy, Stay Happy

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

Why are graphs useful when interpreting data