What event marks the beginning of Earth's current era? O A. The emergence of human life
O B. A mass extinction
O C. The disappearance of land bridges
O D. The end of the last ice age

Is pain reliever a prescription drug?

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

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?