CFC, Freon, and aerosols are becoming less commonly used because they

A) cause acid rain.

B) harm the ozone layer.

C) have radioactive waste.

D) cause Alzheimer's disease.

A certain signal molecule S in heart tissue is degraded by two different biochemical pathways: when only Path 1 is active, the half-life of S is 3.9 s. When only Path 2 is active, the half-life of S is 104. s.

True or false scientific inquiry incorporates many scientific methods

Leptons are made of quarks and antiquarks true or false?

What would happen to the stratosphere if humans were to increase the amount of ozone within it?

Where in the ocean does oceanic lithosphere sink into the mantle? answer?

Question: If the object is falling for 3 seconds, predict the distance the object falls. If a small amount of air resistance is present, predict what this would do to the distance the object falls.

Burning coal produces which type of gas? carbon dioxide oxygen nitrogen hydrogen

A blender uses 1500 joules of energy in 5 seconds. What is the power rating of the blender

What is the centripetal force of an object undergoing uniform circular motion when its radius is doubled and its speed remains constant? A. the same as before B. twice as great as before C. half as great as before D. four times as great as before

A six - sided number cube is labeled with the number 1-6, one number on each face. Each number is used exactly once. How many possible outcomes exist when the cube is rolled two times