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Explain why tides vary according to the Moon?

Explain why tides vary according to the Moon?

The lunar gravity pulls the water from the oceans towards it, creating a bulge of water on the side of the Earth facing the Moon. Surprisingly, a...

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Explain why butter becomes soft at room temperature but solidifies again in the refrigerator?

Explain why butter becomes soft at room temperature but solidifies again in the refrigerator?

Butter is primarily made up of fat, around 80%, mainly consisting of molecules called triglycerides. Triglycerides, in essence, are glycerol attached to three fatty acids, somewhat like...

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Explain why bread rises during baking in the oven?

Explain why bread rises during baking in the oven?

Yeast is primarily a small, living fungus. When it receives warm water and something to eat (flour, sugars), it comes into action. It consumes these...

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Explain why sunlight is essential for the synthesis of Vitamin D in the body.

Explain why sunlight is essential for the synthesis of Vitamin D in the body.

The sun's UVB rays are essential because they transform a molecule present under the skin called 7-dehydrocholesterol into pre-vitamin D3. When you sunbathe (yes, even...

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Explain why leaves change color in the fall?

Explain why leaves change color in the fall?

Leaves contain several types of pigments, such as chlorophyll (green pigment), carotenoids (yellow to orange), and anthocyanins (red, purple). The green color of leaves in...

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Explain why do stars shine at night?

Explain why do stars shine at night?

Stars, like our Sun, are gigantic balls of gas composed mainly of hydrogen. At their core, the pressure and temperature are so enormous that reactions...

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Explain why the Moon appears larger on the horizon?

Explain why the Moon appears larger on the horizon?

The Moon often appears much larger when it touches the horizon than when it is high in the sky. However, its actual size does not...

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Explain why some plants are able to tolerate very acidic soils?

Explain why some plants are able to tolerate very acidic soils?

Plants that grow in very acidic soils often develop morphological tricks to survive comfortably in these challenging conditions. Some have very shallow and extensive roots...

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Explain why cats mainly meow at night?

Explain why cats mainly meow at night?

The cat is a crepuscular animal, which means it is naturally more active at dawn and dusk. In the wild, it is mainly during these...

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Explain why bananas turn yellow?

Explain why bananas turn yellow?

The green color of still immature bananas primarily comes from chlorophyll, this well-known pigment that also gives leaves their green color. As the fruit ripens, this chlorophyll...

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