1273 questions and answers in this section
Explain why marine algae are an important source of oxygen in the ocean?

Explain why marine algae are an important source of oxygen in the ocean?

The photosynthesis of marine algae is a crucial process that allows them to produce energy using sunlight. Like terrestrial plants, marine algae contain chlorophyll pigments...

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Explain why atmospheric pressure varies with altitude?

Explain why atmospheric pressure varies with altitude?

Atmospheric pressure is simply the weight exerted by the air present in the atmosphere on a given surface. Just imagine a huge column of air...

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Explain why water appears calm on the surface of a lake, even in windy weather.

Explain why water appears calm on the surface of a lake, even in windy weather.

When the wind blows over the surface of a lake, several forces come into play to influence the behavior of the water. The force of...

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Explain why mosquitoes bite us?

Explain why mosquitoes bite us?

Mosquitoes bite us to feed on our blood which provides them with the necessary proteins for the maturation of their eggs. Female mosquitoes are the...

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Explain why earthquakes mainly occur along faults?

Explain why earthquakes mainly occur along faults?

Earthquakes mainly occur along faults because this is where seismic activity is concentrated. Faults are areas of the Earth's crust where two blocks of rock...

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Explain why aluminum does not rust like iron?

Explain why aluminum does not rust like iron?

Aluminum does not rust like iron because a thin protective layer of oxide naturally forms on its surface, which protects it from corrosion. This layer, called alumina,...

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Explain why chimney fires smoke?

Explain why chimney fires smoke?

Fireplaces smoke due to incomplete combustion of wood. When wood burns, it releases gases, water vapor, and soot particles. If the temperature of the chimney...

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Explain why sandstorms can travel thousands of kilometers.

Explain why sandstorms can travel thousands of kilometers.

The formation of a sandstorm often begins with prolonged periods of drought and intense heat. The soil, completely dried out, loses its protective vegetative layer, making it...

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Explain why quartz crystals form in hexagons?

Explain why quartz crystals form in hexagons?

Quartz is a crystalline form of silicon dioxide (SiO2), a combination of silicon and oxygen. Each quartz molecule consists of one silicon atom bonded to...

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Explain why fog can suddenly appear without warning?

Explain why fog can suddenly appear without warning?

Fog forms when the air contains a higher amount of water vapor than it can normally absorb. This process occurs when humid air cools down, leading to...

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