How long do CFC molecules remain active in the stratosphere?

a. 10 to 50 years

b. 30 to 60 years

c. 60 to 120 years

d. 150 to 500 years

A seed packaging company purchases 40% of their beans seeds from supplier A and 60% from supplier B and mixes these seeds together. If the bean seed comes from supplier A, the probability it will germinate is 85%.

Nuclear energy is ... A. Energy contained in the bonds between atoms B. Energy contained in the neutrons of the atom C. Energy contained in the nucleus of an atom D. Energy contained in the protons of an atom

1. A battery with an emf of 8.2 V and internal resistance of 1.11 Ω is connected across a load resistor R. If the current in the circuit is 1.04 A, what is the value of R? 2.

The thickness of 25 pages of a physics textbook is 2 mm. How would you find the thickness, in mm, of 1 page?

Catalytic ozone destruction occurs in the stratosphere by a two-step reaction:

You and your roommate are moving to a city 380 mimi away. Your roommate drives a rental truck at a constant 55 mi/hmi/h, and you drive your car at 65 mi/hmi/h. The two of you begin the trip at the same instant.

Which planet is 92,897,000 miles from the sun?

Stretching or drawing a solid into a wire is which of the following physical properties A) ductility B) solubility C) malleability D) conductivity

How well does the infographic ""Plastics in the Ocean"" present a solution to the problem it describes?

How does erosion move and deposit rocks