The part of the earth that contains the air we breathe is called the:
a. biosphere
b. geosphere
c. hydrosphere
d. atmosphere

After considering options, a student using the problem-solving process should next

What is likely to happen in the long term if the earth continues to absorb more energy than it emits? a. the earth will discontinue recycling energy. b. organisms will begin to compensate for the change by incorporating more energy. c. the overall temperature of the earth will increase. d. the nutrient cycles will happen more frequently. select the best answer from the choices provided a b c d

In a class of 20 students, what democratic form of governance makes the most sense