Biology, 08.01.2020 16:31 kingtrent81
According to the law of conservation of matter, matter is never created or destroyed. it only changes form as is evident in the water cycle. but what about the other geochemical cycles? nutrients circulate throughout the environment in complex cycles called biogeochemical cycles, or nutrient cycles. carbon, oxygen, phosphorus, and nitrogen are nutrients that cycle through all of earth’s spheres and organisms.
humans shift carbon to the atmosphere in many ways. and because of the law of conservation of matter, there it stays as the primary greenhouse gas. by extracting fossil fuels, we remove carbon from storage in the lithosphere. by burning those fossil fuels, we move carbon dioxide into the atmosphere. all but one human activity increases the amount of atmospheric carbon.
a) deforestation
b) planting cover crops
c) industrial manufacturing
d) transportation/locomotion
Answers: 2
Biology, 22.06.2019 02:00
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.
Answers: 3
Biology, 22.06.2019 15:00
After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.
Answers: 2
Biology, 22.06.2019 15:30
Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit
Answers: 1
Biology, 22.06.2019 16:00
Which of the following is a true statements about viruses? viruses have no nucleus. viruses are alive. viruses have a cell membrane. all viruses are deadly.
Answers: 1
According to the law of conservation of matter, matter is never created or destroyed. it only change...
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