Which causes the production of vitamin D in humans?

A. ultraviolet rays

B. radio waves

C. gamma rays

D. X-rays

Why is it important to conduct repeated trails during an investigation

Trace fossils are much more common than body fossils. Which of the following best explains why trace fossils are more common?

How does friction affect the distance of an object?

Use the equation d = st, where d = distance, s = speed, and t = time. If you ride your bike at a speed of 5 m/s for 10 seconds, how far do you travel? A. 0.5 m B. 5 m C. 2 m C D. 50 m

Which are benefits of using nuclear power plants to generate electricity? Check all that apply. Nuclear power plants use renewable fuel. Nuclear power plants produce little to no greenhouse gas.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.