Which of the following statements is correct with respect to the photosynthetic pathway of grass or a cactus? in a cactus, carbon is fixed only during the day. in grass, carbon is fixed only during the night. in a cactus, carbon is fixed only during the night.

Describe the change in phase and temperature as water moves from the oceans to the atmosphere and then returns to earth again as rain. a) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature decreases b) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature increases c) evaporation : temperature decreases; condensation : temperature decreases; precipitation (rain) : temperature decreases d) evaporation : temperature increases; condensation : temperature increases; precipitation (rain) : temperature decreases