Answer: A carcinogen
Explanation: Cancer is caused by accumulated damage to genes. ... The substances that cause cancer are called carcinogens. A carcinogen may be a chemical substance, such as certain molecules in tobacco smoke. The cause of cancer may be environmental agents, viral or genetic factors.
Answer:
carcineon
Explanation:
The microscope isn't useful when you are trying to see a large object, or an object that doesn't have major detail. The main use of a microscope is to see things that the human eye cannot. For example, you try to see the structures of an ant. You can see an ant with your eyes alone, but you cannot see it very well without a microscope.
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The scenario that is representative of how agricultural practices can affect the environment is increased oxygen levels in a pond due to fertilizer runoff. Therefore, option A is correct.
Agriculture has a significant impact on the environment, both favorably and unfavorably. It can cause deforestation, water pollution, soil erosion, and climate change. Moreover, it can aid with CO₂ reduction, air quality improvement, wildlife habitat creation, and food production.
Agriculture can have significant adverse consequences on the environment, such as soil, water, and air pollution, but it can also have beneficial effects, such as absorbing greenhouse gases in crops and soils or lowering flood risks by employing specialized agricultural methods.
Thus, the scenario that is representative of how agricultural practices can affect the environment is increased oxygen levels in a pond due to fertilizer runoff. Therefore, option A is correct.
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Your question is incomplete, most probably the full question is this:
Which of the following scenarios is representative of how agricultural practices can affect the environment?
a. increased oxygen levels in a pond due to fertilizer runoff
b. sediment accumulation in a body of water near a farm
c. soil compaction caused by tillage
d. increased plant growth caused by the application of herbicides
Answer:
The correct answer to the question, 'which of the following scenarios is representative of how agricultural practice can affect the environment' is A. Option A is chosen because it is the only option that refer to another environment which is different from that of the farm. When fertilizers are washed to nearby ponds as a result of erosion, it causes a lot of negative changes in the pond. For instance, the chemicals in the fertilizer can be poisonous to some of the smaller organisms in the pond, this will result in the death of these organisms. Fertilizer run off can also cause excessive growth of plants such as algae in the pond. This may block out the light necessary for the survival of the organisms in the ponds and may also reduce the amount of oxygen available to the organisms living in the pond.
Explanation:
Oxygen is used by both autotrophs and heterotrophs to release energy from glucose in a process known as cellular respiration.
Carbon dioxide is predominantly used in autotrophs to perform photosynthesis.
An autotroph is because they release oxygen during photosynthesis and require carbon dioxide to perform photosynthesis.
Autotrophs are those organisms, that are known to make their own food in the presence of sunlight. Example- Plants
Heterotrophs are those organisms that use the food that comes from the other organism in the form of fats, proteins, and carbohydrates. These organisms that feed on other are called as heterotrophs.
Thus, Carbon dioxide, however, is predominantly used in autotrophs to perform photosynthesis because they cannot get their food any other way. The type of organism that is both an oxygen producer and carbon dioxide consumer is an autotroph.
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Oxygen is used by both autotrophs and heterotrophs to release energy from glucose (as we know, the bonds between organic compounds can be used to release energy) in a process known as cellular respiration. Carbon dioxide, however, is predominantly used in autotrophs to perform photosynthesis because they cannot get their food any other way. The type of organism that is both an oxygen producer and carbon dioxide consumer is an autotroph. This is because they release oxygen during photosynthesis and require carbon dioxide to perform photosynthesis.
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