Astatement that can be proven by observation or measurement is known as a(n)

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Which greenhouse gas is emitted when burn fossil fuels for energy? a.nitrogen b.oxygen c.carbon dioxide d.helium

Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b.passive c. facilitated d.active b.passive