Q: What is the chief organ of the urinary system? Read this paragraph and choose the correct option from the provided answers: The kidneys are the chief organs of the urinary system. Choices: - liver - bladder - lung - kidney A:
kidney

Q: How long can carbon be stored in sedimentary rock? Read this paragraph and choose the correct option from the provided answers: Carbon cycles quickly between organisms and the atmosphere. Cellular respiration releases carbon into the atmosphere as carbon dioxide. Carbon is also released when organisms decompose. Human actions, such as the burning of fossil fuels, also release carbon into the atmosphere. Natural processes, such as volcanic eruptions, release carbon from magma into the atmosphere. Warm ocean waters also release carbon, whereas cold ocean water dissolves carbon from the atmosphere. Photosynthesis (autotrophs) removes carbon dioxide from the atmosphere and uses it to make organic compounds. Carbon cycles far more slowly through geological processes such as sedimentation. Runoff, rivers and streams dissolve carbon in rocks and carry it to the ocean. Sediments from dead organisms may form fossil fuels or carbon-containing rocks. Carbon may be stored in sedimentary rock for millions of years. Choices: - around 10,000 years - less than 1000 years - 22 weeks - millions of years A:
millions of years

Q: What is the term for the fast-moving air currents high in the troposphere? Read this paragraph and choose the correct option from the provided answers: Jet streams are fast-moving air currents high in the troposphere. They are also the result of unequal heating of the atmosphere. Jet streams circle the planet, mainly from west to east. The strongest jet streams are the polar jets. The northern polar jet is shown in Figure below . Choices: - gale force winds - ocean streams - global winds - jet streams A:
jet streams