Answer:
it affects the hardness of the shells because calcium has a high reactivity which causes the shell to be hard
Explanation:
Answer:
they are both caused by tectonic plates under the Earth's crust shifting
Explanation:
Explanation:Governments pay for these services through revenue obtained by taxing three economic bases: income, consumption and wealth. The Federal Government taxes income as its main source of revenue. State governments use taxes on income and consumption, while local governments rely almost entirely on taxing property and wealth.
