Search for relevant information and explain components and division of atmospheric layers covering the Earth’s surface.
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Q 1/19
Score 0
What is the primary function of a Stevenson screen in weather observation?
30
To amplify sound waves for better weather prediction.
To protect weather instruments from direct sunlight and precipitation.
To measure wind speed.
To collect rainwater samples.
Q 2/19
Score 0
Which of the following statements accurately describes the relationship between altitude and air temperature?
30
Air temperature increases with increasing altitude.
Air temperature remains constant regardless of altitude.
Air temperature generally decreases with increasing altitude.
Altitude has no consistent effect on air temperature.
19 questions
Q.
What is the primary function of a Stevenson screen in weather observation?
1
30 sec
SC7.CPE.1
Q.
Which of the following statements accurately describes the relationship between altitude and air temperature?
2
30 sec
Q.
Which type of cloud is typically associated with thunderstorms and heavy rainfall?
3
30 sec
Q.
Why does the Southern Hemisphere experience winter when the Northern Hemisphere experiences summer?
4
30 sec
Q.
A weather balloon measures an atmospheric pressure of 0.5 atm. Assuming standard sea-level pressure is 1 atm, what is the approximate altitude of the weather balloon?
5
30 sec
Q.
During the daytime, which type of surface would typically exhibit a faster rate of temperature increase: a sandy beach or a nearby body of water?
6
30 sec
Q.
How does the presence of clouds affect nighttime temperatures compared to a clear night sky?
7
30 sec
Q.
The image describing the Earth's seasons in the sources highlights equinoxes. Which of the following statements accurately describes an equinox?
8
30 sec
Q.
Why are light-coloured surfaces, like glaciers, generally cooler than dark-coloured surfaces, like forests?
9
30 sec
Q.
A mercury barometer reads 745 mm Hg. Given that 1 atm is equivalent to 760 mm Hg, calculate the atmospheric pressure in atmospheres.
10
30 sec
Q.
If the air temperature at sea level is 15°C and decreases by an average of 6°C per 1000 metres of altitude gain, what would be the air temperature at the summit of a 2500-metre mountain?
11
30 sec
Q.
A car travels at a constant speed of 60 kilometres per hour. Calculate the distance the car will cover in 2.5 hours.
12
30 sec
Q.
A Six's thermometer indicates a minimum temperature of -4°C and a maximum temperature of 12°C over a 24-hour period. What is the temperature range for the day?
13
30 sec
Q.
If the relative humidity is 80% and the air can hold a maximum of 25 grams of water vapour per cubic metre at the current temperature, how much water vapour is present in the air?
14
30 sec
Q.
A cloud contains 500,000 water droplets, and each droplet has an average mass of 0.0002 grams. Determine the total mass of the water in the cloud in grams.
15
30 sec
Q.
A hot air balloon rises from sea level, where the atmospheric pressure is 1 atm. If the atmospheric pressure decreases by approximately 0.1 atm for every 1000 metres of altitude gain, what will be the atmospheric pressure at an altitude of 3500 metres?
16
30 sec
Q.
If the air temperature at the base of a mountain is 20°C and the temperature at the summit, 3000 metres above, is -5°C, calculate the average lapse rate (the rate at which temperature decreases with altitude) in °C per 1000 metres.
17
30 sec
Q.
A sailboat is travelling at a speed of 15 knots (nautical miles per hour). If it maintains this speed for 4 hours, how many nautical miles will it cover?
18
30 sec
Q.
A weather station reports a wind speed of 12 metres per second. Given that 1 metre per second is approximately equal to 2.24 miles per hour, calculate the wind speed in miles per hour.
