The chemical composition of soil in a certain area was found to differ from that of the bedrock beneath it. Which statement would best explain the
difference in chemical composition?
A. The climate, especially rain and extreme temperatures caused the
soil to develop
B. Water washed iron oxide from the A horizon to the Dhorizon
C. The soll layers were mature because a large amount of time had
passed
O D. Water wind and gravity transported weathered particles gifrock to
new locations

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

Which of the following is a testable hypotheses?

Grade 91.)the gravitational pull from the moon words).2.) what is the rate of gravitational 3.)if you drop a hammer, is it more likely to drop handle side down, head side down, or equal chance that it will land either way? why? 4.)a car moves 60km east and 90km west.a.) what is the distance the car traveled? b.) what is the car's displacement5.)what is the average velocity of a car that moved 60 km south in 3 hours? 6.) a car starts from rest and acceleration to 60 m/s over a time of 5 seconds. what is the acceleration of the car? 7.)what is the speed of an object at rest?