As distance from earth’s surface increases, the temperature of the stratosphere
a. decreases.
c. remains the same.
b. increases.
d. none of the above.

Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. what could he have done to increase the validity of his data? reduce the number of plants. remove the 1 hour group. add a 0 hours control. measure the oxygen in liters

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .

What are the ingredients of oobleck?