The Amazon rainforest

The Amazon rainforest

 

The Amazon rainforest also known in English as Amazonia or the Amazon Jungle, is a moist broadleaf forest that covers most of the Amazon Basin of South America. This basin encompasses 7,000,000 square kilometres (2,700,000 sq mi), of which 5,500,000 square kilometres (2,100,000 sq mi) are covered by the rainforest. This region includes territory belonging to nine nations. The majority of the forest is contained within Brazil, with 60% of the rainforest, followed by Peru with 13%, Colombia with 10%, and with minor amounts in Venezuela, Ecuador, Bolivia, Guyana, Suriname and French Guiana. States or departments in four nations contain "Amazonas" in their names. The Amazon represents over half of the planet's remaining rainforests, and comprises the largest and most biodiverse tract of tropical rainforest in the world, with an estimated 390 billion individual trees divided into 16,000 species.

 

 

 

 

THE TALLEST WATERFALL IN THE WORLD

THE TALLEST WATERFALL IN THE WORLD

 

“The tallest waterfall in the world at 3,211 feet, Angel Falls is so high that some of the water evaporates before it even reaches the pool below. When you look up from the base, the waterfall seems to come from nowhere. Unlike most falls, this one isn’t fed by snowmelt, a lake or a river, but by rainfall from the tropical clouds. Getting to and from Angel Falls on your own is logistically tricky, so it’s necessary to see this cascade with a guide… Closest major city: Angel Falls is located in Canaima National Park, which has an on-site airport that connects visitors to and from Caracas.”
 

What is a Geyser

What is a Geyser?

A geyser is a rare kind of hot spring that is under pressure and erupts, sending jets of water and steam into the air.

Geysers are made from a tube-like hole in the Earth's surface that runs deep into the crust. The tube is filled with water. Near the bottom of the tube is molten rock called magma, which heats the water in the tube.

Water in the lower part of the tube, close to the magma, becomes superhot. Gradually, it begins to boil. Some of the water is forced upward. The boiling water begins to steam, or turn to gas. The steam jets toward the surface. Its powerful jet of steam ejects the column of water above it. The water rushes through the tube and into the air.

The eruption will continue until all the water is forced out of the tube, or until the temperature inside the geyser drops below boiling (100 degrees Celsius, or 212 degrees Fahrenheit, at sea level).

After the eruption, water slowly seeps back into the tube. The process begins again. In some small geysers, the eruption process can take just a few minutes. In larger geysers, it can take days. The most famous geyser in the United States, Yellowstone National Park's Old Faithful, erupts about every 50-100 minutes.

Geyser