Approximately 2.2 billion years ago which gas was first added in large amounts to earth atmosphere from life forms that evolved in the oceans

What causes temperature extremes in the desert

Glucose is a form of sugar found in the blood cells use glucose as a source of energy, but too much or too little can cause serious health issues so, the body uses the hormone insulin to regulate glucose n the blood insulin maintain glucose levels in the blood if blood glucose lovels got very high, what would you expect to see happen to insulin levels?

At which location in earth’s interior does the top density continue to increase as thickness decreases?