Answer:
incoming Paleoindians, the first Americans, who allegedly hunted them to extinction.
Answer: b. reaction 3
Explanation: When an enzyme is present in a reaction acts as a catalyst, increasing velocity of reaction and decreasing the activation energy, when not present an enzyme the reaction velocity is very low and implies high activation energy, being unfavorable to the system
Answer:
A piece of fruit hanging from a tree - kinetic energy
Lightning produced during a storm - electrical energy
Radio waves transmitted from a tower - radiant energy
sand on the beach feels warm - thermal energy
a box moving along a conveyor belt - gravitational potential energy
Explanation:
hope this helps
The earth is about 6,000 years old.