Ques: Q: Bar, circle, and line are all types of what? Choices: - theories - maps - algorithms - graphs A:
Ans: graphs

Ques: Q: What process is involved in the formation of a waterfall, when a stream flows from an area of harder to softer rock? Choices: - calcification - migration - evaporation - erosion A:
Ans: erosion

Ques: Q: What supports life, and is also needed for the water cycle and weather? Choices: - fossil fuels - oxygen - greenhouse gas - atmosphere A:
Ans: atmosphere

Ques: Q: Which temperature scale is commonly used in science? Choices: - ph scale - celsius - centigrade - kelvin scale A:
Ans:
kelvin scale