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Ira Lisetskai [31]
3 years ago
5

99 percent of the earth's atmosphere by mass is made up of only elements. These elements are

Physics
2 answers:
Alja [10]3 years ago
8 0
99% of the earth´s atmosphere by mass is made up of only these elements: Nitrogen and oxygen.

Answer: B) Nitrogen and oxygen.
diamong [38]3 years ago
7 0

The correct answer is B) Nitrogen and oxygen

Explanation:

The atmosphere refers to the gaseous layer that covers a body such as a planet. The composition of the atmosphere varies according to the planet or body and therefore the elements found on it are different. In the case of our planet, the atmosphere is mainly composed of nitrogen and oxygen as these are 99% of the atmosphere, while other elements such as carbon dioxide represent the 1% missing. Also, the atmosphere is divided into different layers according to heigh this includes the troposphere, stratosphere, among others. Thus, 99 percent of the Earth's atmosphere is made up only of nitrogen and oxygen.

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Answer:

2.2kg

Explanation:

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galben [10]

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3 years ago
A wave is travelling at 3000 m/s has a wavelength of 1 m.
Levart [38]

Answer:

a] 3000hz

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3 0
3 years ago
At summer camp, the swimming course runs the length (L) of a small lake. To determine the length of the course, the camp counsel
sleet_krkn [62]

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47 m

Explanation:

Data obtained from the question include the following:

Length of dry leg 1 (L1) = 40 m

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The length of the swimming course can be obtained by using pythagoras theory as shown below:

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