When Were the Ice Ages?
When Were the Ice Ages? The Ice Ages ended about 10,000 years ago after lasting about two million years. At its greatest extent the ice covered nearly 30 per cent of...
Read MoreWhen Were the Ice Ages? The Ice Ages ended about 10,000 years ago after lasting about two million years. At its greatest extent the ice covered nearly 30 per cent of...
Read MoreWhat Is an Aerosol? An aerosol consists of fine particles of liquid or solid substances suspended in the air, or in any other gas. It is not, as many people think,...
Read MoreGlobal Warming is the increase of Earth’s average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil...
Read More