Which of the following do not make their own energy through nuclear fusion? Select all that apply.

A. giant star

B. protostar

C. dwarf star

D. black hole

E. neutron star

F. main sequence star

Explain why a valve would last longer in the pulmonary position than in the aortic position

Scientists are testing a new drug, which they think might allow people to memorize large amounts of information. Group A is taking a sugar pill. Group B is taking the new drug. Both groups are 25-35 years old and are not taking any other medicine.

When baking soda and vinegar are mixed together bubbles form and the vinegar and baking soda are changed into new chemicals. this is an example of- A) a physical change B) a chemical change

What is the current maximum storage capacity limit of a magnetic tape? a. 300tb b. 500gb c. 185tb d. 15tb?

Which of the following statements is not true about what John Locke believed?

An atom of nitrogen has five valence electrons. How could a nitrogen atom become more chemically stable

Mirages are due to: interference refraction reflection scattering

As you throw a ball, you exert a force on that ball of 4.2 N. You exert this force on the ball while the ball moves a distance of 0.50 m. The ball then leaves your hand and travels a horizontal distance of 8.5 m to your friend.

How does folding change rock layers

Why is mass movement more common after a heavy rainfall?