Search for relevant information and explain components and division of atmospheric layers covering the Earth’s surface.
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Q 1/21
Score 0
What percentage of Earth's atmospheric gases are found in the troposphere?
30
0.75
0.25
1
0.5
Q 2/21
Score 0
Which of the following gases is essential for respiration in living organisms?
30
Nitrogen
Oxygen
Carbon dioxide
Argon
21 questions
Q.
What percentage of Earth's atmospheric gases are found in the troposphere?
1
30 sec
SC7.CPE.1
Q.
Which of the following gases is essential for respiration in living organisms?
2
30 sec
Q.
What is the name of the process by which liquid water transforms into water vapour and rises into the atmosphere?
3
30 sec
Q.
What type of precipitation forms when water vapour in the atmosphere freezes into small pellets?
4
30 sec
Q.
Which atmospheric layer is the outermost layer, where the atmosphere gradually fades into space?
5
30 sec
Q.
Which of the following is a consequence of warmer air having a greater capacity to hold moisture?
6
30 sec
Q.
How does the presence of particulate matter (PM) in the atmosphere affect precipitation patterns?
7
30 sec
Q.
Why is the stratosphere considered a stable layer for airplane travel?
8
30 sec
Q.
Why does the temperature decrease with altitude in the troposphere?
9
30 sec
Q.
What role do human activities play in impacting the atmosphere?
10
30 sec
Q.
Why does it often rain more in the evenings and at night compared to during the day?
11
30 sec
Q.
If a weather balloon ascends at a constant speed of 5 metres per second, how long will it take to reach an altitude of 3 kilometres?
12
30 sec
Q.
If the relative humidity is 60% and the saturation point of the air at the current temperature is 20 grams of water vapour per cubic metre, what is the actual amount of water vapour present in the air?
13
30 sec
Q.
If the temperature at the base of a mountain is 20°C and the temperature decreases by 6.5°C for every 1000 metres of altitude gain, what would be the approximate temperature at the summit, which is 4000 metres above the base?
14
30 sec
Q.
A sample of dry air contains 210 millilitres of oxygen. If oxygen makes up approximately 21% of dry air, what is the approximate total volume of the dry air sample?
15
30 sec
Q.
Earth's average surface temperature is about 15°C. If Earth had no atmosphere, its average surface temperature would be about -18°C. What is the temperature difference, in degrees Fahrenheit, between Earth's current average surface temperature and what it would be without an atmosphere?
16
30 sec
Q.
A research aircraft is flying at an altitude of 10 kilometres, within the troposphere. If the tropopause, the boundary between the troposphere and stratosphere, is at an altitude of 12 kilometres, what percentage of the troposphere's height has the aircraft flown through?
17
30 sec
Q.
The air pressure at sea level is approximately 1013 hPa. For every 100 metres of altitude gain, the atmospheric pressure decreases by about 12 hPa. What would be the approximate air pressure, in hPa, at the summit of a mountain 2500 metres above sea level?
18
30 sec
Q.
If the concentration of carbon dioxide in the atmosphere is 415 parts per million (ppm), what is this concentration expressed as a percentage?
19
30 sec
Q.
If a city experiences an average of 1200 millimetres of rainfall per year, and 70% of that rainfall occurs during the warmer months, what is the average rainfall, in millimetres, during the cooler months?
20
30 sec
Q.
The thermosphere experiences extremely high temperatures, reaching up to 2000°C. However, it would not feel hot to a human due to the low density of air molecules. If a hypothetical spacesuit could withstand these temperatures and a human inside felt a temperature of 25°C, what would be the percentage difference between the actual thermosphere temperature and the perceived temperature inside the spacesuit?
