Answer the following question given this paragraph: Clouds form when air in the atmosphere reaches the dew point. Clouds may form anywhere in the troposphere. Clouds that form on the ground are called fog . Q: What are clouds that form on the ground called? Choices: - haze - smoke - canopy - fog A:
fog
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Answer the following question given this paragraph: Oxygen has increased in the atmosphere throughout the history of the earth. Note the logarithmic scale, which indicates great increases after first photosynthesis (in bacteria) and then land plants evolved. Related geological events: A = no oxidized iron; B = oxidized iron bands in seabed rock - evidence for O 2 in the oceans; C = oxidized iron bands on land and ozone layer formation- evidence for O 2 in the atmosphere. Q: What has increased in the atmosphere throughout the history of the earth? Choices: - nitrogen - wind - carbon - oxygen A:
oxygen
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Answer the following question given this paragraph: Q: The maturing follicle, containing a fluid-filled cavity, enlarges, forming a bulge near the surface of what? Choices: - the pelvis - the abdomen - the vagina - the ovary A:
the ovary
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Answer the following question given this paragraph: Like roots, the stems of vascular plants are made of dermal, vascular, and ground tissues. Q: In vascular plants, what two basic structures are made of dermal, vascular, and ground tissues? Choices: - stems and flowers - roots and seed - fruits and nuts - roots and stems A:
roots and stems
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