1274 questions and answers in this section
Explain why is the lava from Hawaiian volcanoes so fluid?

Explain why is the lava from Hawaiian volcanoes so fluid?

Hawaiian lavas are primarily composed of basalt, a volcanic rock rich in iron and magnesium, but very low in silica. The key point is this...

Read full answer

Explain why do stars twinkle more in winter than in summer?

Explain why do stars twinkle more in winter than in summer?

In winter, the marked contrast between the very cold air near the ground and the warmer layers of air higher up enhances atmospheric turbulence. The...

Read full answer

Explain why certain species of ferns grow on tree trunks?

Explain why certain species of ferns grow on tree trunks?

Epiphytic ferns have developed special adaptations to survive in the heights of trees. They absorb water and nutrients directly from the air and rain through...

Read full answer

Explain why is the city of Houtouwan (in China) invaded by vegetation after its abandonment?

Explain why is the city of Houtouwan (in China) invaded by vegetation after its abandonment?

Houtouwan is a fishing village located on Shengshan Island, which is part of the Shengsi Archipelago in eastern China. The village is about 140 kilometers...

Read full answer

Explain why do some aquatic plants float on the surface of the water?

Explain why do some aquatic plants float on the surface of the water?

Some aquatic plants float due to special adaptations. They have lightweight structures and air pockets that help them stay at the surface. These air pockets...

Read full answer

Explain why can some lakes form under the ice?

Explain why can some lakes form under the ice?

Water under the ice seems strange, doesn't it? However, this occurs when the glacier rests on a bedrock with natural hollows and basins. These depressions...

Read full answer

Explain why Amazonian tribes use specific plants for rituals?

Explain why Amazonian tribes use specific plants for rituals?

Amazonian tribes possess ancestral knowledge about the plants in their environment. This knowledge is often passed down orally from generation to generation. The shamans, considered...

Read full answer

Explain why volcanic ash clouds can be visible for thousands of kilometers?

Explain why volcanic ash clouds can be visible for thousands of kilometers?

Volcanic ash clouds are projected very high into the atmosphere. They can reach up to 20 kilometers in height. It's like launching a ping-pong ball...

Read full answer

Explain why carrots can have different colors?

Explain why carrots can have different colors?

The classic orange color of carrots mainly comes from beta-carotene, an orange pigment that gives a healthy glow and belongs to the family of carotenoids. But it...

Read full answer

Explain why were carrots originally purple?

Explain why were carrots originally purple?

Carrots were originally cultivated over 1000 years ago in what is now Afghanistan and Iran, and guess what: they were mainly purple or violet! The...

Read full answer

May 9, 2025 : We have reached 240M+ (millions) GIFs viewed on Giphy (check here!). Use our GIFs on WhatsApp or elsewhere. We are gradually offering them on Tenor. This may take a little time.