Which of the following is a consequence of using fossil fuels as an energy resource

a. decreased carbon dioxide levels
b. increased biodiversity
c. increased acid rain
d. decreased ecosystem disruption

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs