The presence of humidity in the atmosphere is ensured by observing water drops on the outer surface of a steel glass filled with hot water. The warmth of the hot water causes moisture in the air to condense on the ...
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Hot air produces more flame compared to boiling water, steam, or sun rays. When air is heated to high temperatures, it expands, becoming less dense and rising. This convection process creates a flame when combined with a fuel source.
Woolen clothes are warmer than cotton clothes because they are good insulators of heat. Wool fibers trap air within their structure, creating a barrier against heat loss. This insulation prevents body heat from escaping, keeping the wearer warm.
White clothes are cooler than black clothes because they reflect whatever light reaches them. Unlike black clothes, which absorb light and convert it into heat, white clothes reflect most of the light, including infrared radiation, reducing heat absorption and maintaining ...
The morning sun is not as hot as the afternoon sun because in the morning, the sun’s rays have to travel a greater distance in space before reaching the Earth’s surface. Therefore, they are more scattered and less intense, resulting ...