Which one of these is a natural factor that effects the environment?

A. domestication

B. oxygen

C. research

D. factories

A cyclist rode at a average speed of 15 mph for 15 minutes, how long was the ride?

Tossed Salad is an example of?

How might acid precipitation affect local economies?

Give an example for each of the following situations: 1) Negative acceleration, but positive velocity 2) Positive acceleration and positive velocity 3) Positive acceleration, but negative velocity 4) Negative acceleration and negative velocity 5)

A sample of radium-226 will decay to ¼ of its original amount after 3200 years. What is the half-life of radium-226?

A plane flies along a straight line path after taking off, and it ends up 210 km farther east and 90.0 km farther north, relative to where it started. What is the plane's displacement?

Compare exothermic reactions and endothermic reactions. Give at least one similarity and one difference.

A solid cylinder with a radius of 73.3 cm and a mass of 2.33 kg accelerates uniformly from rest in 4.13 seconds while experiencing 6.71 rotations. Solve for the (a) final angular velocity.

In the early stages of its formation, earth became hot enough that some of its solid materials turned to liquid. Which of these factors did not directly contribute to earths high internal temperatures

How do you find Rtotal in a series without knowing the voltage?