1273 questions and answers in this section
Explain why some civilizations worshipped the Sun as a god?

Explain why some civilizations worshipped the Sun as a god?

Ancient civilizations often worshipped the Sun because of its crucial role in agriculture. Without the Sun, there would be no photosynthesis, thus no plants, and...

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Explain why does the city of Eilat (in Israel) offer coral reefs in the middle of the desert?

Explain why does the city of Eilat (in Israel) offer coral reefs in the middle of the desert?

Eilat is nestled at the southern tip of Israel, where the Negev Desert meets the shimmering shores of the Red Sea. This coastal city is...

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Explain why some mountains emit low noises before an avalanche occurs?

Explain why some mountains emit low noises before an avalanche occurs?

Mountains form due to the movements of tectonic plates. When two plates crash into each other, it creates folds and faults in the Earth's crust. This process...

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Explain why some volcanoes have effusive eruptions while others have explosive eruptions?

Explain why some volcanoes have effusive eruptions while others have explosive eruptions?

The composition of the lava changes everything. If the lava is fluid, meaning low in silica, it flows easily. This results in effusive eruptions, like...

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Explain why do shearwaters travel long distances without getting lost?

Explain why do shearwaters travel long distances without getting lost?

Terns are renowned for their incredible navigation abilities. They use the Earth's magnetic field as a natural compass. It's almost like they have a built-in...

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Explain why eggshells are porous.

Explain why eggshells are porous.

The eggshell, you know, it's the armor for your breakfast. It is composed of three main layers. First, there's the outer coating, also called the...

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Explain why do sea anemones close up in the presence of threats?

Explain why do sea anemones close up in the presence of threats?

Sea anemones are fascinating marine animals. They resemble flowers but are predators. Their bodies consist of a base that anchors them to rocks or the...

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Explain why ants form colonies with well-defined roles?

Explain why ants form colonies with well-defined roles?

Among ants, each individual has a well-defined role from birth. This is known as polyethism. Young workers start with tasks inside the nest, such as...

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Explain why do giant waves sometimes occur without warning?

Explain why do giant waves sometimes occur without warning?

The waves are born from the wind. When the wind blows over the surface of the ocean, it transfers its energy to the water. Small...

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Explain why the most massive stars become black holes?

Explain why the most massive stars become black holes?

Massive stars operate like giant nuclear reactors. At the core of the star, extreme temperatures and pressures allow hydrogen nuclei to fuse to form helium. This fusion...

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