1290 questions and answers in this section
Explain why the oceans are saltier near the equator.

Explain why the oceans are saltier near the equator.

The sun beats down hard near the equator, causing intense heat that enhances the evaporation of water at the surface of the oceans. When water...

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Explain why tomatoes ripen after being picked?

Explain why tomatoes ripen after being picked?

Once picked, the tomato continues to ripen by mobilizing several processes that gradually change its color, texture, and taste. Most importantly, it increases its production...

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Explain why was Socrates sentenced to death by ingesting poison?

Explain why was Socrates sentenced to death by ingesting poison?

At the time when Socrates was wandering the streets of Athens, the city had just gone through the Peloponnesian War, a mega confrontation against Sparta. Athens had...

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Explain why do trees often wrap around their support?

Explain why do trees often wrap around their support?

Climbing trees often wrap their branches around a support to best reach sunlight, which is essential for their growth. In the forest, the competition for...

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Explain why Marie Curie chose to study radioactivity?

Explain why Marie Curie chose to study radioactivity?

Marie Curie grew up in a Poland occupied by the Russian Empire, with significant restrictions placed on education, particularly for women. From a young age, she developed...

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Explain why fluctuations in atmospheric pressure influence our mood?

Explain why fluctuations in atmospheric pressure influence our mood?

Atmospheric pressure, that is to say the force exerted by the surrounding air on our body, directly influences our brain. When this pressure varies, especially...

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Explain why food cooks when heated.

Explain why food cooks when heated.

When you heat a food, its molecules start to move and vibrate faster and faster. This intense agitation breaks some bonds, allowing the molecules to...

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Explain why pressure increases with depth in the oceans?

Explain why pressure increases with depth in the oceans?

Pressure in water is simply the force exerted by the weight of the water above a specific point. The deeper you go, the heavier the...

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Explain why the skin of grapes is sometimes powdery?

Explain why the skin of grapes is sometimes powdery?

This dusty white film that sometimes covers grapes is called bloom. It is not dust or pesticides, but a fine waxy layer produced naturally by...

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Explain why some animal species practice parthenogenesis.

Explain why some animal species practice parthenogenesis.

Parthenogenesis offers a clear advantage: no need to find a mate. This is practical when living in isolation or in environments where encountering a conspecific...

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