Answer:
The answer is A, B, C and D
Explanation:
(is that how it works?)
So the heavy skateboarder will move off with speed 2.45 m/s in the opposite direction
Greenhouse gases
What is Global Warming? Global warming is the unusually rapid increase in Earth's average surface temperature over the past century primarily due to the greenhouse gases released by people burning fossil fuels.Jun 3, 2010