1246 questions and answers in this section
Explain why is oceanographic research fundamental to understand climate change?

Explain why is oceanographic research fundamental to understand climate change?

The oceans are the true heroes of the Earth's climate. They absorb and distribute heat in an incredible way. When the sun beats down on...

Read full answer

Explain why some volcanic islands increase in size year after year?

Explain why some volcanic islands increase in size year after year?

Deep within the Earth, magma is constantly in motion. It's this liquid rock. Under pressure, it is always seeking an exit and often ends up...

Read full answer

Explain why are the hot springs in Yellowstone of different colors?

Explain why are the hot springs in Yellowstone of different colors?

The different colors of Yellowstone's hot springs largely come from microbial pigments. Bacteria and algae, known as thermophiles, love the heat and thrive by producing...

Read full answer

Explain why were the ancient Egyptian astronomers fascinated by Sirius?

Explain why were the ancient Egyptian astronomers fascinated by Sirius?

Sirius, also known as the Dog Star, is the brightest star in the night sky. The ancient Egyptians saw it in the constellation of the...

Read full answer

Explain why Pluto is no longer considered a planet.

Explain why Pluto is no longer considered a planet.

A planet is a celestial body that orbits the Sun (or another star) and possesses enough mass to have an almost spherical shape due to...

Read full answer

Explain why the Moon always has the same hidden side.

Explain why the Moon always has the same hidden side.

The Moon always shows the same side to the Earth due to what is known as synchronous rotation. This means that the Moon takes exactly...

Read full answer