A because when the little fish die they sink to the bottom, and after time the skeletons build up on top of each other.
Answer:
Negative
Explanation:
There are more electrons (negative charge) than there are protons (positive charge).
Answer:
First leve consumer: 1,000 energy units
Second level consumer: 100 energy units
Third level consumer: 10 energy units
Explanation:
Answer:
protons is 7 neutrons should be 9
Explanation:
protons number is its atomic number
the number of protons and the number of neutrons determine an element's mass number.
The correct answer is an accumulation of microorganisms in deep marine environments.
Chalk rock refers to a pure form of limestone produced in tropical and warm seas about 100 million years ago in the Cretaceous period. The microscopic marine algae known as coccoliths thrived in the ancient seas. Their shells were comprised of calcite. With the death of the algae, their bodies sunk to the floor of the sea and sediment of chalk got deposited.
Over many years layers of chalk sediment got deposited and resulted in compaction of loose sediment into solid chalk rock.
