MULTIPLE CHOICE : Choose the Letter of the correct answer and write on the ANSWER SHEET provided 1. What process in the water cycle occurs when plants give off water vapor through the stomata of their leaves? A. Respiration B. Transpiration C. Sublimation D. evaporation 2.Why is the process of water cycle important on Earth 1. Water cycle helps in regulating the Earth's temperature. Il. It is a necessary component for survival of living organisms. III. It helps distribute the source of water all over the Earth. IV. It moves nutrients, microorganisms, and sediments in and out of aquatic ecosystem. A. I and II B. I,II, and III C.ll and IV D. I, II, III, and IV 3. Carbon-oxygen cycle is of importance to the environment. Which of the following process/es is/are necessary for carbon to be cycled through the biosphere? A. photosynthesis B. respiration C. transportation D. both A and B 4. How are plants and animals connected to each other through carbon-oxygen cycle? A. Plants absorbs carbon dioxide from animals and in return releases oxygen for the animals. B. Plants need oxygen for survival and animals need carbon dioxide. C. Plants releases carbon dioxide for animals and in return releases oxygen for plants. D. Plants and animals both need oxygen and carbon dioxide for survival. 5. In the nitrogen cycle, what process is responsible for converting nitrate to nitrogen gas? A. assimilation B. denitrification C. lightning fixation D. nitrification​