167 questions and answers in this section

Natural Sciences » Botany

Explain why do conifers always remain green?

Explain why do conifers always remain green?

The needles of conifers are not simply modified leaves, but structures designed to meet specific needs. Their needle-like shape reduces the surface contact with air, thus limiting...

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Explain why is the smell of freshly cut grass so pleasant?

Explain why is the smell of freshly cut grass so pleasant?

The characteristic smell of freshly cut grass mainly comes from a substance called cis-3-hexenal. This compound is produced when the grass blades are damaged: in...

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Explain why is maple syrup primarily produced in Quebec?

Explain why is maple syrup primarily produced in Quebec?

The production of maple syrup requires very specific weather conditions: very cold winters followed by a mild spring with regular alternation of freezing and thawing. And indeed,...

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Explain why is the moss slippery under our wet feet?

Explain why is the moss slippery under our wet feet?

Moss is a plant that resembles a small natural sponge. Its structure full of tiny holes allows it to absorb and retain water easily. Once...

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Explain why lemons fall from the tree?

Explain why lemons fall from the tree?

Earth's gravity is a natural force that attracts all objects towards the center of the Earth. It is this force that allows lemons, as well...

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Explain why boxwoods turn yellow?

Explain why boxwoods turn yellow?

Boxwoods are often subject to attacks by various parasites and diseases that can cause their leaves to turn yellow. Among the most common parasites are...

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Explain why does the baobab store water in its trunk?

Explain why does the baobab store water in its trunk?

The baobab often grows in very dry regions, where rain is scarce. To cope with these periods of drought, the tree adapts by keeping a...

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Explain why do algae sometimes bloom abundantly in warm waters?

Explain why do algae sometimes bloom abundantly in warm waters?

Algae love it when it's warm: their metabolism speeds up, and this boosts their development. Higher temperatures often mean faster growth because the internal chemical...

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Explain why some mushrooms glow in the dark at night?

Explain why some mushrooms glow in the dark at night?

The phosphorescence of mushrooms primarily comes from small molecules called luciferins, which react with specific enzymes, luciferases. This chemical reaction emits a soft visible light, usually green...

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Explain why do fruits fall from trees when they are ripe?

Explain why do fruits fall from trees when they are ripe?

When the fruit ripens, it grows and its weight gradually increases. This surplus weight exerts increasing tension on the attachment that connects the fruit to...

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