Which of newton’s laws of motions explains why a ball bounces off the ground after it hits the ground

The activity of the modern sample is 1.10 bq . how long does that measurement take?

The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes