input: OPTIONS:
- gravity
- waves
- depletion
- extinction Now, answer this question: Answer the following question given this paragraph: The evolution of life on Earth wasn't always smooth and steadyfar from it. Living things had to cope with some astounding changes. Giant meteorites struck Earth's surface. Continents drifted and shifted. Ice ages buried the planet in snow and ice for millions of years at a time. At least five times, many, if not most, of Earth's living things went extinct. Extinction occurs when a species completely dies out and no members of the species remain. But life on Earth was persistent. Each time, it came back more numerous and diverse than before. Q: Ice ages, continental drift, and giant meteorites striking earth have caused what phenomenon? A:
A:
output: extinction

Answer the following question given this paragraph: Momentum can be calculated by multiplying an object's mass in kilograms (kg) by its velocity in meters per second (m/s). For example, assume that a golf ball has a mass of 0.05 kg. If the ball is traveling at a velocity of 50 m/s, its momentum is:. Q: What can be calculated by multiplying an object's mass in kilograms (kg) by its velocity in meters per second (m/s)? A:

OPTIONS:
- energy
- height
- ground speed
- momentum

Answer: momentum

Problem: OPTIONS:
- complex progression
- pattern progression
- primary pattern
- primary succession
Q: Answer the following question given this paragraph: The pioneer species is soon replaced by other populations. Abiotic factors such as soil quality, water, and climate will determine the species that continue the process of succession. Mosses and grasses will be able to grow in the newly created soil. During early succession, plant species like grasses that grow and reproduce quickly will take over the landscape. Over time, these plants improve the soil and a few shrubs can begin to grow. Slowly, the shrubs are replaced by small trees. Small trees then are succeeded by larger trees. Since trees are more successful at competing for resources than shrubs and grasses, a forest may be the end result of primary succession. Q: What's the term for the gradual progression from simple plants to larger more complex ones in an area? A:
Answer: primary succession

Problem:OPTIONS:
- birth
- mitosis
- electrolysis
- meiosis

Answer the following question given this paragraph: Overview of Meiosis. During meiosis, homologous chromosomes separate and go to different daughter cells. This diagram shows just the nuclei of the cells. Notice the exchange of genetic material that occurs prior to the first cell division. Q: During what do homologous chromosomes separate and go to different daughter cells? A:
****
A: meiosis

Answer the following question given this paragraph: Major reservoirs of carbon include sedimentary rocks, fossil fuels, and the ocean. Sediments from dead organisms may form carbon-containing sedimentary rocks. Alternatively, the sediments may form carbon-rich fossil fuels, which include oil, natural gas, and coal. Carbon can be stored in these reservoirs for millions of years. However, if fossil fuels are extracted and burned, the stored carbon enters the atmosphere as carbon dioxide. Natural processes, such as volcanic eruptions, can also release underground carbon from rocks into the atmosphere. Q: What is released into the atmosphere when fossil fuels are burned? A:
OPTIONS:
- hydrogen dioxide
- ferris oxide
- hydrogen monoxide
- carbon dioxide
carbon dioxide

Answer the following question given this paragraph: Hydropower utilizes the energy of falling water. Q: Hydropower is generated with what natural resource? A:
OPTIONS:
- light
- air
- fire
- water

Answer:
water