1. Which of the following is not part of the layer of the Earth a. crust b. asthenosphere c. troposphere 2. The layer of earth which consists of solid nickel and iron a. a. crust b. mantle c. inner core d. outer core 3. Which of the following is the reason why inner core is solid while outer core is liquid given that both parts have the same chemical composition? a. Inner core experiences higher pressure which raises the melting point of iron and nickel b. Inner core experiences lower pressure which raises the melting point of iron and nickel c. Inner core experiences higher temperature than the outer core 4. Knowing about the effect of higher altitude to air temperature in troposphere, what would you do when climbing mountains? a. bring umbrella b. bring/wear jackets c. bring enough food d. bring flashlight 5. What is the most abundant element in the Earth's atmosphere? b. carbon dioxide c. nitrogen a. argon d. oxygen 6. What is the correct order of Earth's atmospheric layer from bottom to top? a.. Stratosphere, mesosphere, troposphere, thermosphere, exosphere b. mesosphere, stratosphere, troposphere, thermosphere, exosphere c. troposphere, stratosphere, mesosphere, thermosphere, exosphere d. stratosphere, troposphere, mesosphere, thermosphere, exosphere 7. Why is the presence of ozone layer in the stratosphere important for survival of living things on Earth? a. It warms Earth's surface d. core c. it helps in cloud formation b. it makes jet flying more comfortable d. offer protection from sun's harmful UV rays 8. In which of the following layers of atmosphere does temperature decrease as altitude increases? a. mesosphere and stratosphere b. troposphere and mesosphere c. troposphere and stratosphere d. thermosphere and stratosphere 9. The solid outer section of Earth is referred to as the a. atmosphere b. biosphere c. hydrosphere 10. Which is not a type of tectonic plate boundary? b. divergent c. insurgent a. convergent d. lithosphere d. transform