Which of these is an advantage of hydropower?
a
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a. it is expensive to build and maintain.
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b. it has high power-plant efficiency.
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c. it harms aquatic organisms.
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d. it is available only in limited areas.
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Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative

What is the ecological role of food chains and food webs