The Europeans strolled into the new land of America and used their technology and strength by numbers to take over the Indians world. The iron edge blades and the gunpowder-powered guns were to much for any <span>Indian and the Europeans would often capture the king of a certain community and take over the</span>
Answer:
Carbon atoms
Explanation:
Mass no. of an element= no. of protons + no. of neutrons = 6 + 7 = 13
Atomic no. = no. of protons/electrons = 6
There is an unbalanced situation between the neutron no and proton no. so this has to be an isotope of Carbon-12, and this element is Carbon-13.
It's 7 kilometres from earth in light years
Natural environment has the ability to gather some pollutants yet if too much then the environment could no longer handle it. A leaky sewage can pollute an aquifer with I. arsenic as the contaminant. Arsenic is a metalloid existing in the Earth's crush. Exposure is natural yet can be aggravated by the human activities.