Answer:
Im pretty sure 1 is gravity, 2 is force
Explanation:
When looking for distance you multiply speed by time
So 15 x 2 = 30
30 is the distance between his house and school
Streams carry sediment, like pebbles, in their flows. The pebbles can be in a variety of locations in the flow, depending on it's size, the balance between the upwards velocity on the pebble (drag and lift forces), and it's settling velocity.
Earths atmosphere heats up polars melt
