Before an ozone layer formed to reduce radiation, life existed

a. in the air.

c. in oceans and underground.

b. in trees and plants.

d. on land.

What sedimentary rock is Mixture of sizes, pebble to clay

A bus seems to be travelling slower when our bus overtake other, but the bus seems to be travelling fast when it is coming from the opposite direction, why

What force pulls the moon towards the earth?

A golf club with 65J of kinetic energy strikes a stationary golf ball with a mass of 46g. The energy transfer is only 20% efficient. Calculate the initial speed of the golf ball

A ball is thrown vertically upward from a height of 6 feet with an initial velocity of 41 feet per second. how high will the ball go? (round your answer to two decimal places.)

The divisions of time in the Geologic Time Scale represent: a) the Law of Superposition b) the results of radiometric dating c) major changes in biodiversity d) multiples of 35 million years e) all of the above

You are in a canyon and yell across. It takes 4 seconds for the echo to come back to you. How wide is the canyon?

Question 26 Unsaved What happens when you compress a gas? Question 26 options: The density increases The volume increases The pressure decreases Depends on the gas The temperature decreases

What force keeps a water spider on the surface of water

An object with a mass of 78 kilograms is lifted through a height of 6 meters. How much work is done? A. 47.75 J B. 4,586.4 J C. 468 J D. 764.4 J