Which of the following statements about biodiversity is true? a. Changes to biodiversity always positively affect an ecosystem. b. Changes to biodiversity always negatively affect an ecosystem. c. Changes to biodiversity can positively and negatively affect on an ecosystem. d. Changes to biodiversity never affect an ecosystem.
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Chemistry, 22.06.2019 03:50, AysiaRamosLee
What is the temperature of one mole of helium gas at stp?
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Chemistry, 22.06.2019 07:00, maryjane8872
Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
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Chemistry, 22.06.2019 16:00, jrocklove7825
About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?
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Chemistry, 22.06.2019 16:30, ddmoorehouseov75lc
Correct relationship between molecular formula and empirical formula
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Which of the following statements about biodiversity is true? a. Changes to biodiversity always posi...
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