Which of the following is a renewable energy source? a. biofuel b. natural gas c. gasoline d. coal

Which of the following is a consequence of urban heat islands? increased precipitation downwind of the city? increased precipitation upwind of the city? decreased winds within the city? increased winds within the city?

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.

Match each description of an object’s motion with the position-time graph that represents it. not moving moving with constant speed speeding up slowing down