Q: 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? Choices: - hydrogen dioxide - ferris oxide - hydrogen monoxide - carbon dioxide A:
A: carbon dioxide

Q: Answer the following question given this paragraph: The color of a material is due to the ability of its atoms to absorb certain wavelengths while reflecting or reemitting others. A simple red material, for example a tomato, absorbs all visible wavelengths except red. This is because the atoms of its hydrocarbon pigment (lycopene) have levels separated by a variety of energies corresponding to all visible photon energies except red. Air is another interesting example. It is transparent to visible light, because there are few energy levels that visible photons can excite in air molecules and atoms. Visible light, thus, cannot be absorbed. Furthermore, visible light is only weakly scattered by air, because visible wavelengths are so much greater than the sizes of the air molecules and atoms. Light must pass through kilometers of air to scatter enough to cause red sunsets and blue skies. Q: What weakly scatters visible light? Choices: - space - Reflection - water - air A:
A: air

Q: Answer the following question given this paragraph: Pressure is the result of force acting on a given area. It can be represented by the equation:. Q: What property is the result of force acting on a given area? Choices: - vaccuum - pull - resistance - pressure A:
A: pressure

Q: Answer the following question given this paragraph: Modern plants have three different types of tissues. They are called dermal, ground, and vascular tissues. Each type of tissue has a different function. Q: What are the 3 types of tissues that modern plants have? Choices: - cambrium, epidermis, and ground - sturdy , ground , and vascular - sinuous , ground , and vascular - dermal, ground, and vascular A:
A: dermal, ground, and vascular