Answer:
Answer is in Explanation
Explanation:
You see Ammonites lived during the Devonian Period up until the Cretaceous Period.
However, during the Devonian Period Earth was entirely covered with water, as the first ammonites died the first big extinction the Ordovician-Silurian Extinction occurred and during that time up until the end of the Cretaceous Period or better known as the Cretaceous-Tertiary extinction occurred.
Then came the ice age which froze up a ton of Earth water.
They face problems with their economic growth and jobs. They also have problems with mining, cost of living, delivery of services and also corruption.
In Plate Tectonic Theory, the lithosphere is broken into tectonic plates, which undergo some large scale motions. The boundary regions between plates are aptly called plate boundaries. Based upon their motions with respect to one another, these plate boundaries are of three kinds: divergent, convergent, and transform.
Answer:
Wave base
Explanation:
Halfway between the crests and the troughs is called as Wave base or baseline.
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Answer:
Leaves are the most important
Explanation:
Leaves are directly exposed to sunlight and contains chlorophyll which is the chemical that makes them green and is key in photosynthesis.