Q: Oxygen, carbon, hydrogen and what other element make up approximately 96% of living matter? Read this paragraph and choose the correct option from the provided answers: Choices: - calcium - helium - silicon - nitrogen A:
nitrogen

Q: What occurs between long warm climate periods? Read this paragraph and choose the correct option from the provided answers: Earth's climate has changed many times. Long warm periods were broken up by ice ages. Over the past 150 years, climate has warmed quickly. Choices: - hurricanes - mass extinction - drought - ice ages A:
ice ages

Q: Scientists who find and study fossils are called what? Read this paragraph and choose the correct option from the provided answers: Fossils are a window into the past. They provide clear evidence that evolution has occurred. Scientists who find and study fossils are called paleontologists . How do they use fossils to understand the past? Consider the example of the horse, shown in Figure below . The fossil record shows how the horse evolved. Choices: - biologists - geologists - anthropologist - paleontologists A:
paleontologists

Q: The earth is tilted on its what? Read this paragraph and choose the correct option from the provided answers: The Earth is tilted on its axis ( Figure above ). This means that as the Earth rotates, one hemisphere has longer days with shorter nights. At the same time the other hemisphere has shorter days and longer nights. For example, in the Northern hemisphere summer begins on June 21. On this date, the North Pole is pointed directly toward the Sun. This is the longest day and shortest night of the year in the Northern Hemisphere. The South Pole is pointed away from the Sun. This means that the Southern Hemisphere experiences its longest night and shortest day ( Figure below ). Choices: - top - compass - radius - axis A:
axis