Which of the following are observations? - the candle floats. - the tires are flat. - the dog is barking. - the tire is flat because of a decrease in temperature. - if a person walks by, then the dog will bark.

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division