Posttest Direction: Encircle the letter of the correct answer that best completes the sentence.
1. What is formed from the collision of smaller object like an asteroid or meteorite into the surface of a larger solid object like a planet or a moon. A. depression B. ancient scar C. impact crater D. volcanic crater 2. Last August 12, 2020, people around the world witnessed the famous Perseids meteor shower with up to 50 visible shooting stars every hour that appeared in the night sky. If you were to go to the landing spot of those shooting stars, what object could you probably pick up? A. meteor B. asteroid C. meteorite D. meteoroid 3. Some scientists believed that dinosaurs became extinct due to an asteroid impact that took place 65 million years ago. Where in the world did this happen? A. Malasiqui, Pangasinan B. Yucatan peninsula, Mexico C. Northern Territory, Australia D. Newfoundland and Labrador, Canada 4. When can an oceanic impact be hazardous? A. If the impact generated shallow-water waves. B. If the asteroid caused tsunami waves that are 5 meters high. C. If small asteroids hit the ocean and produced low frequency-water waves. D. If the asteroid is so large that it generated tsunami waves which height is that of the ocean's depth. 5. Why will the Earth's temperature drop if an asteroid hit the planet? A. The ices from the asteroid will increase the Earth's albedo. B. The collision would move the Earth farther away from the sun. C. The asteroid's very low temperature will turn the Earth into an ice-like planet on impact D. The dust cloud formed from the impact will cover the skies and block the sun's rays from getting in.