Answer the following question given this paragraph: Test wells are drilled to monitor groundwater pollution. Q: What are drilled to monitor groundwater pollution? Choices: - sewers - aquifers - draining wells - test wells A:
test wells
Answer the following question given this paragraph: Rougher surfaces have more friction between them than smoother surfaces. That's why we put sand on icy sidewalks and roads. The blades of skates are much smoother than the soles of shoes. That's why you can't slide as far across ice with shoes as you can with skates (see Figure below ). The rougher surface of shoes causes more friction and slows you down. Heavier objects also have more friction because they press together with greater force. Did you ever try to push boxes or furniture across the floor? It's harder to overcome friction between heavier objects and the floor than it is between lighter objects and the floor. Q: What force is greater on rougher surfaces than smooth surfaces? Choices: - tension - acceleration - gravity - friction A:
friction
Q: Answer the following question given this paragraph: Why does it snow instead of rain? Air temperature determines which type of precipitation falls. Rain falls if the air temperature is above freezing (0 C or 32 F). Frozen precipitation falls if the air or ground is below freezing. Frozen precipitation may fall as snow, sleet, or freezing rain. You can see how the different types form in Figure below . Q: What determines which type of precipitation falls? Choices: - air pressure - air currents - ground temperature - air temperature A:
A: air temperature
Question: Answer the following question given this paragraph: Flatworms do not have a respiratory system. Instead, they have pores that allow oxygen to enter through their body. Oxygen enters the pores by diffusion. Q: By what process does oxygen enter the pores of flatworms? Choices: - absorption - filtration - permeation - diffusion A:
Answer: diffusion
*Question*
Answer the following question given this paragraph: Q: Sepals, petals, stamens, and carpels are what kind of organs? Choices: - animal - reproductive - marine - floral A:
**Answer**
floral
Q: Answer the following question given this paragraph: The endocrine system consists of glands that secrete hormones into the bloodstream. It is regulated by a part of the brain called the hypothalamus, which also secretes hormones. The hypothalamus controls the pituitary gland, which is called the "master gland" of the endocrine system because its hormones regulate other endocrine glands. Other endocrine glands include the thyroid gland and pancreas. Q: What specific part of the brain regulates the endocrine system? Choices: - parietal lobe - hippocampus - frontal lobe - hypothalamus A:
A: hypothalamus