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ValentinkaMS [17]
3 years ago
6

What is a null hypothesis?​

Geography
1 answer:
Svetllana [295]3 years ago
4 0

Answer:

The null hypothesis is a typical statistical theory which suggests that no statistical relationship and significance exists in a set of given single observed variable, between two sets of observed data and measured phenomena.

Hope this helps, have a great day/night, and stay safe!

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A chicken farmer stores all of the chicken manure from his farm in large piles next to the river. Throughout the
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The Correct Answers were

Nutrient

Bacterial

<em>*100% CORRECT ANSWERS</em>

__________________________________________________

Question 1

A chicken farmer stores all of the chicken manure from his farm in large piles next to the river. Throughout the spring and summer, the piles of manure are exposed to rain and wind. The farmer finally removes the manure in the fall. What two types of pollution are demonstrated in this real world example?

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Question 2

Instead of riding his bike, a college student drives to class every day. He also drives to the store, to friends' houses, and everywhere else. Every time he fills up his tank, a little bit of gasoline drips to the ground. The car's exhaust contains nitrogen oxides, which contribute to nitrogen levels in nearby water bodies. What two types of pollution are demonstrated in this real world example?

Toxic

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Question 3

By rotating their crops, farmers can reduce their dependence on fertilizers, herbicides, and pesticides. Despite the benefits of crop rotation, many farmers only grow one or two crops year after year. This increases their use of fertilizers, herbicides, and pesticides. What two types of pollution are demonstrated in this real world example?

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Question 4

A new mall and movie theater are being built on the outskirts of Suburbia. Trees and brush are cleared away, the land is bulldozed, and a silt fence is installed across part of the development. However, construction is delayed for a year, leaving the land exposed to the elements. What type of pollution is demonstrated in this real world example?

Sediment

Question 5

A new wastewater treatment plant opens in an area where raw sewage used to be dumped directly into a bay. What type of pollution will be reduced the most by the new plant?

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Question 6

After buying a new house by the lake, the Harrison's decided to cut down the trees and bushes that were blocking their view. This left an open area with no vegetation between the house and the lake. What type of pollution is demonstrated in this real world example?

Sediment

Question 7

Rather than pay for an oil change at the service station, Justin decides to do the job himself. He drains the used oil and antifreeze directly into the ground in the alley beside his house. After several years, he notices there are no more frogs in the pond behind his house. What type of pollution is demonstrated in this real world example?

Toxic

Question 8

After a home renovation, Marta and Xander had leftover paint and solvent. Instead of following the disposal instructions on the containers, they decided the easiest way to dispose of these materials was to place them in the garbage for their regular trash pickup. What type of pollution is demonstrated in this real world example?

Toxic

Question 9

In a large new housing complex, many families do not practice water conservation. They take long showers, over-water their lawns, and wash their cars frequently. The local water treatment facility is old and was not designed to handle the increased amount of water, causing untreated sewage to be released into the environment. What two types of pollution are demonstrated in this real world example?

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Question 10

Many school cafeterias serve food on paper products (paper plates, paper cups, cardboard trays, etc.) rather than using reusable plates, glasses, and trays. In many cases, these paper products are not made from recycled paper. What type of pollution is demonstrated in this real world example?

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Question 11

A new development is being built on the outskirts of a city, near a stream. A parking lot is constructed on one side of the stream, and land is cleared for a playground on the other side. Cars in the parking lot sometimes leak oil and antifreeze onto the pavement. What two types of pollution are demonstrated in this real world example?

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Question 12

Many homeowners think that large amounts of fertilizer are needed to grow a nice, green lawn. Some think that, the more fertilizer they add, the greener their lawn will be. What type of pollution is demonstrated in this real world example?

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Question 13

A rural homeowner moves into an old house with an old septic tank. (Septic tanks are used to treat household sewage.) After a few weeks, she notices smelly water pooling in her yard near the septic tank. She decides to wait to see if the problem will go away. What two types of pollution are demonstrated in this real world example?

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Question 14

Which of the following activities is most likely to result in sediment pollution?

cutting down trees

Question 15

Which of the following activities is most likely to result in nutrient pollution?

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Answer:

d) Principle of Conservation of Matter

Explanation:

Principle of Conservation of Matter -

According to the law of conservation of matter, matter is the substance which ac not be created and even it can not be destroyed , hence we need to have the same number of atoms before and after the reaction constant during a chemical change or process of chemical as were number of atoms and type of atoms present before the chemical change .

Hence , from the options , the correct answer is the Principle of Conservation of Matter .

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