Answer:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.
Explanation:
Carbon moves from the atmosphere to plants. ...
Carbon moves from plants to animals. ...
Carbon moves from plants and animals to soils. ...
Carbon moves from living things to the atmosphere. ...
Carbon moves from fossil fuels to the atmosphere when fuels are burned. ...
Carbon moves from the atmosphere to the oceans.
Human activities, such as burning fossil fuels, deforestation, and animal husbandry, significantly affect the carbon cycle. These activities release large amounts of carbon dioxide into the atmosphere at a rate faster than it can be naturally absorbed, contributing to global warming and climate change.
Human activities significantly influence the carbon cycle. This happens in various ways such as the burning of fossil fuels, deforestation, and animal husbandry. These activities release large quantities of carbon dioxide into the atmosphere at a rate faster than it can be naturally absorbed.
Burning of fossil fuels like coal, oil, and gas releases carbon that has been stored for millions of years, increasing the levels of atmospheric carbon dioxide. This burning process has accelerated since the Industrial Revolution and contributes to an increase in carbon dioxide levels in the atmosphere.
Deforestation indirectly accelerates the rise in carbon dioxide levels. Trees absorb carbon dioxide for photosynthesis, and when they are cut down, this absorption process is interrupted. Additionally, when these trees are burned or rot, the stored carbon is released back into the atmosphere as carbon dioxide.
Furthermore, animal husbandry practices contribute to the increase in atmospheric carbon. The rearing of large numbers of livestock to meet the protein needs of the growing global population results in increased levels of carbon dioxide and methane production. The livestock respire, releasing carbon dioxide, and also produce methane, a potent greenhouse gas, through their digestive processes.
These human activities alter the nature of the carbon cycle and subsequently contribute to global warming and climate change.
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The distribution of organisms of a species is constant with respect to time on the surface of the earth.
A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring.
Organisms of a particular species evolve with respect to time. A specific organism or species does not stay the same over a period of time. But they acquired constant changes over time. They are favored by the environment to produce fertile offspring.
Therefore, the distribution of organisms of a species is constant with respect to time on the surface of the earth.
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Answer:
The distribution of organisms on the earth's surface is ultimately due to evolutionary change: Organisms or Species do not stay the same over time but are in a constant state of change as individuals. They are best able to live and reproduce within certain environments.
Explanation:
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Answer:
D) seasonally unemployed.
Explanation:
A lifeguard who is out of work in the winter is considered seasonally unemployed. Seasonal unemployment refers to a type of unemployment that occurs during specific seasons or times of the year when certain industries or jobs experience a temporary decrease in demand. In this case, the demand for lifeguards typically decreases during the winter months when outdoor swimming activities decrease due to colder weather. Therefore, the lifeguard's unemployment is a result of a seasonal pattern rather than being unemployed due to factors such as lack of skills or available jobs (structural unemployment), fluctuations in the business cycle (cyclical unemployment), or transitional periods between jobs (frictional unemployment).
Answer:
The correct answer is option b. "Guppy color patterns would change; guppies would produce fewer but larger offspring; the nitrogen excretion rate would increase and the rate of growth of primary producers such as algae would increase".
Explanation:
The Trinidadian guppy is a species of fish with the scientific name Poecilia reticulata. Just like almost all species, its population is regulated for multiple factors, one of them being the presence of predators. The removal of Trinidadian guppy predators would result in multiple consequences:
- Guppy color patterns would change. The fish have a complex coloration determined largely by predation avoidance.
- Guppies would produce fewer but larger offspring. This adaptation has been proved in an experiment at which the fish was introduced one a low predation environment. The report proved that evolution can take place in less than 10 years.
- The nitrogen excretion rate would increase. It has been reported that predation reduce Trinidadian guppy nitrogen excretion by 40%. Removing the predators will case the nitrogen excretion rate to increase due to an increase in the fish food intake.
- The rate of growth of primary producers such as algae would increase. This is an effect of the increase of nitrogen excretion rate, which benefits algae population to growth.