Answer:
1 = A
2 = B
3 = B
Explanation:
1) Black holes occur when really big stars collapse on themselves. And, in order to get big, the star has to be an old one.
2) A black hole is something huge that swallows up everything, while a protostar is just the very beginning of a star.
3) Scientist can't truly know for sure, but they can infer about them due to the effects of the surrounding areas.
Organisms with small, expandable bodies, extremely large mouths, and efficient teeth are likely to be found in the bathypelagic zone
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
Collagen is a substance that is made up of amino acid linked together to form long, branched polypetide (tertiary protein chains). Thus COLLAGEN is the protein.
Answer:
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The answer is true, making solar energy one of the most cost effective sources of energy.
Let me know if you need more help :)
