Describe the radioactive disintegration’s known as alpha, beta, and gamma decay

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

What must be the same for any two resistors that are connected in series ? a. the potntial diffrence across each b. the rate at which charge moves through each c. the rate at which energy is used by each d. the resistance to the flow of charge of each

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.