1290 questions and answers in this section
Explain why some rivers meander through landscapes?

Explain why some rivers meander through landscapes?

The shape of rivers often begins to be shaped by the slope and the irregularities of the ground. As soon as the ground dips a...

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Explain why black holes distort space-time?

Explain why black holes distort space-time?

A black hole typically appears when a massive star reaches the end of its life. At this stage, there is no more nuclear fuel to...

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Explain why plants climb along supports?

Explain why plants climb along supports?

Climbing plants have developed a few biological tricks. Some have tendrils, which are thin and flexible stems that wrap around a support to gradually climb...

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Explain why marsh plants are effective at filtering water?

Explain why marsh plants are effective at filtering water?

Wetland plants have highly branched and extensive roots, perfect for capturing pollutants suspended in the water. In addition, these plants often develop hollow or porous...

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Explain why the kiwi is covered in hair?

Explain why the kiwi is covered in hair?

Initially, the wild ancestors of the kiwi primarily grew in China, in a habitat with a humid and cool climate. Evolving with a skin covered...

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Explain why batteries lose their power in the cold?

Explain why batteries lose their power in the cold?

When it’s cold, the chemical reactions inside your battery slow down, plain and simple. Why? Because the cold reduces the agitation of the molecules and...

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Explain why does water bubble when it boils?

Explain why does water bubble when it boils?

When you heat water, the molecules absorb energy and start to move faster and faster. At a certain point, some molecules gain enough energy to...

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Explain why time seems to slow down when approaching a black hole?

Explain why time seems to slow down when approaching a black hole?

Gravity does not only act on objects; it also directly influences time itself. The stronger a gravitational field, the more slowly time passes. On Earth, this phenomenon...

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Explain why white is the best color for clothing in hot weather.

Explain why white is the best color for clothing in hot weather.

When the sun is beating down, the choice of clothing becomes important. White has a nice feature: it naturally reflects a large part of sunlight, unlike dark...

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Explain why the ground can start shaking without warning?

Explain why the ground can start shaking without warning?

Earthquakes mainly occur when large pieces of the Earth's surface called tectonic plates suddenly move. These plates slowly move against each other, sometimes sliding, or...

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