17. What is the innermost layer of the atmosphere, extending 17 kilometers above

Question

17. What is the innermost layer of the atmosphere, extending 17 kilometers above sea level at the tropics and about 7 kilometers above the earth's north and south poles? a. troposphere b. stratosphere C. hydrosphere d.goosphere e biosphere 18. Ecology is the study of a how human impacts the b. the abiotic elements of the environment environment C the biotic elements of the d. how organisms interact with each other and the nonliving environment e. how evolution formed populations 19. Organisms that feed only on plants are called_. c. carnivores d. herbivores e. decomposers 20. Sustainability refers to_ b. how we interact with the a. the way in which the natural world works c. human methods of coping with environmental problems e. the capacity of the earth's natural systems to survive, flourish, d. refusing, reducing, reusing, and recycling and adapt True / False Indicate whether the statement is true or false. (1 point each) 21. Scientists tend to be highly skeptical of new data, hypotheses, and models until they can be tested and verified a. True b. False 22. The three overarching themes relating to the long-term sustainability of life on this planet are solar energy, biodiversity, and chemical cycling a. True b. False 23. Living sustainably means living on natural income a. True b. False

Explanation / Answer

17. Troposphere

18. How organism interact with each other and non living environment

19. Herbivores

20. The capacity of earths natural system to survive, flourish and adapt

21. True

22. True

23. False.

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