Energy from the Sun hits Earth A. everywhere at once, creating uniform temperatures.
B. in only a few places, creating spots of high pressure.
C. evenly, creating layers of uniform climate zones.
D. unevenly, creating areas of high and low pressure.

Why should the scientific method be used to answer a question? a. it provides a way to test an idea without any bias. b. it provides a way to test a hypothesis. c. it provides a way to ensure all hypotheses are proven correct. d. it provides a way to quickly turn a hypothesis into a scientific theory.

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

What is the independent variable in this investigation? mass volume sample number substance density