A small, hard-shelled fossil that resembles a modern-day ocean organism was found in the desert.
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What can geologists conclude about this desert?
These shelled organisms migrated from the ocean to the desert.
Prehistoric man enjoyed eating shelled organisms in the desert.
A glacier once moved across the desert sands.
The desert was once covered by ocean water.

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

Amixture with the same composition throughout is!

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?