Answer: B
Explanation:
Thermal plasmas are plasmas that reach a temperature equal to their surroundings.
Answer:
Calcium
Explanation:
"Calcium is a mineral that is necessary for life. In addition to building bones and keeping them healthy, calcium enables our blood to clot, our muscles to contract, and our heart to beat. About 99% of the calcium in our bodies is in our bones and teeth.
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Answer:
There are parts of the ocean where hardly any rain falls but warm dry winds cause lots of evaporation. This evaporation removes water – when water vapour rises into the atmosphere, it leaves the salt behind, so the salinity of the seawater increases. This causes the seawater to become denser.
There must be two oxygen atoms to form covalent bond as when each oxygen atom contribute 4 electrons to the another, the atoms will become stable as they both have 8 electrons on the outermost shell. Refer to the dots and cross diagram i drew.
