How many us children speak a second language at home?

What is the primary purpose of a game reserve?

How do convection currents form underwater mountains?

Match the graph type to its description. 1. uses symbols to describe information pie 2. compares different quantities at the same point in time line 3. compares increases and decreases in a quantity over a period of time bar 4. shows the relationship of parts to each other and to the whole pictograph