Which two processes are involved in water cycle? 1 point A. Heating and cooling of the air B. Heating and cooling of the soil C. Heating of water and cooling of water vapor D. Cooling of water and then heating it under the sun. What is the role of the sun in the process of photo- synthesis? 1 point A. It melts the water on the soil beneath the plants. B. It evaporates the water on the leaves of the plants. C. It provides the chemical energy needed by plants to breathe. D. It provides the light energy needed by plants in order to make food. 4. In the water cycle, which of the following is needed in the evaporation process? 1 point A. Sun B. Rain C. Snow D. Wind 5. Which of the following is true about the shadows formed by a tall boy and a small boy at 9 o'clock in the morning? 1 point A. The shadows have equal lengths. B. The shadow of the taller boy is longer. C. The shadow of the taller boy is shorter D. The shadow of the small boy is twice the length of the shadow of the tall boy. 6. What do you call the water from the atmosphere in solid or liquid forms that fall to Earth? 1 point A. Condensation B. Evaporation C. Precipitation D. Cloud 7. Which of the following weather instrument is used to measure the amount of rainfall? 1 point A. Wind vane B. Thermometer C. Anemometer D. Rain gauge 8. Which of the following is the news about the weather? 1 point A. Weather news B. Weather man C. Weather forecast D. Meteorologist 9. Which gives us enough heat and light in order to live? 1 point A. Sun B. Hydro power plant C. Electricity D. Generator 10. What is the effect of sun's heat and light to the environment? 1 point A. It causes the changes in temperature. B. It helps the plants in making their food. C. It sustains the life of animals, plants and humas. D. All of the above 11. Without the sun, what would most likely happen to the earth. 1 point A. The earth will be dark and cold B. The earth will be lifeless C. None of the above D. Both A and B 12. Why do farmers use their wide-brim hats when they are working in the farm? 1 point A. To protect them from strong winds. B. To protect them from head injuries. C. To protect them from the intense heat and light of the sun. D. To protect their heads from insect bites. 13. In which process do plants release water from their leaves? 1 point A. Condensation B. Evaporation C. Precipitation D. Transpiration 14. How do animals and humans release or give off water particles? 1 point A. Through transpiration B. Through respiration C. Trough condensation D. Trough precipitation 14. Which of these is not good practice? 1 point A. Wearing umbrella during sunny days B. Looking at the sun directly. C. Applying sun block all over the skin. D. Wearing dark glasses on hot days. 16. When does an object cast a longer shadow? 1 point A. When light rays are slanted B. When light rays are on top C. When light rays are side ways D. When light rays are trapped 17. When is air pressure high? 1 point A. When air is cold B. When air is warm C. When air is humid D. When air moves 18. Which type of soil is best for planting? 1 point A. Loam B. Clay C. Sand D. Hard rock 19. Which source of water is considered as the cleanest and contains plenty of dissolved minerals? 1 point A. Iceberg B. Sea water C. Fresh water D. Ground water 20. You are going to school and you observed the dark clouds in the sky. what should you do? 1 point A. Bring extra clothes B. Wait for the rain to fall C. Bring an umbrella or a raincoat D. Wear sunglasses to protect your eyes from the sun