Explain why modern dogs look different from their common ancestor (Wolf).

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

While carrying a heavy box up the stairs,you set the box on a step and rest. then you pick up the box and carry it to the top of the stairs. describe these actions in terms of balanced and unbalanced forces acting on the box.

Only 3% of the water on earth is usable by humans. even though that 3% is through the water cycle, we still need to be careful not to waste water.