B. it makes your results more convincing
Explanation:
It is important to conduct multiple trials in an experiment because it makes results more convincing.
Multiple trials removes and spreads error from one or more steps in experiment.
- The ability to reproduce result in an experiment is known as precision.
- Precision is very important in experiments.
- When a scientist carries out multiple trails in an experiment, it helps to remove any likely error that might have been carried into the experiment.
- Multiple trials are key to efficiency of experiments.
- From the results we can confidently state findings based on statistically backed data obtained.
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Answer:
That there used to be an abundance of plants and animals that lived there. Does this help?
Explanation:
Coal forms from dead things from the past being subjected to high pressure.
It would be the last one.
Answer:
a. Midwest has few sources of acid rain-forming pollutants.
Explanation:
Midwest has few sources of acid rain-forming pollutants because Midwest has less number of factories which produces less pollution. Farming, mining, and manufacturing of different products are the major industries Midwest. Other industries like transportation, finance, and machinery are also important for the economy of Midwest. Due to less number of factories less amount of pollutants goes to the atmosphere and will not cause acid rain.
<u>Answer:</u>
Greenhouse gas refers to any gaseous compound in the atmosphere that can absorb infrared radiation, thereby trapping heat and keeping it in the atmosphere. By increasing the heat in the atmosphere, greenhouse gases are responsible for the greenhouse effect, which ultimately leads to global warming.
<u>Examples why greenhouse gases in the atmosphere:</u>
- farming cattle releases methane
- farming rice in paddy fields releases methane
- burning fossil fuels in vehicles and power stations releases carbon dioxide
- deforestation releases carbon dioxide and reduces the absorption of carbon dioxide through photosynthesis
