What best explain the cirulation system within mammals

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer

Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two

What causes the development of most clouds and precipitation in the atmosphere?