Indigo is the source for the beautiful color known as "mayan blue" true or false

Which continents lie only in the northern hemisphere

What structure on the south african coast has a range of 63 km and releases flashes every 30 seconds?

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