# POSSIBLE POINTS: 2 A student wondered if different types of plants would produce different amounts of oxygen. A pea plant, a fern, and a cactus were growing in equal-sized containers with equal amounts of soil. The student measured the amount of oxygen produced by each. Identify one factor (other than the size of the container and the amount of soil) that should be held constant in this experiment. Explain why this variable needs to be held constant. ​

###### Question:

POSSIBLE POINTS: 2 A student wondered if different types of plants would produce different amounts of oxygen. A pea plant, a fern, and a cactus were growing in equal-sized containers with equal amounts of soil. The student measured the amount of oxygen produced by each. Identify one factor (other than the size of the container and the amount of soil) that should be held constant in this experiment. Explain why this variable needs to be held constant. ​

### Dino operates a museum that showcases rare fossils. Recently he has seen an increase in business and is determining whether to hire a new employee. If acting rationally on what should he base his decision

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He clasps the crag with crooked hands; Close to the sun in lonely lands, Ringed with the azure world, he stands, The wrinkled sea beneath him crawls; He watches from his mountain walls; And like a thunderbolt he falls. Which type of figurative language is used in this description of the eagle: "He...

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please evaluate this equation 9m*2 - 3n*3 / p + 8 for m = 3 , and p=9...

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5. Animals depend on plants for carbon dioxide..... True or False ​...

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Barrios were Spanish speaking neighborhoods that:...

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### If the presence in greenhouse gases in Earth's atmosphere continues to increase at the present rate, scientists predict that in the next 50 to 100 years, atmospheric temperatures could rise by 2oC. All of these could be consequences of global warming EXCEPT A) an increase in arid and semi-arid areas on Earth. B) permanent flooding of low-lying coastal wetlands. C) an increase in square miles of polar ice covering Earth. D) a rise in the amount of vegetation found in tundra and taiga regions.

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