How did Eratosthenes of Cyrene calculate the tilt and circumference of Earth? Select all that apply. a. geometry
b. the position of the moon
c. distance between locations on Earth
d. the angle of the sun's rays
e. the size of the continents
f. the size of the oceans

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?