Environment

In very tall mountains, the death zone refers to altitudes where the amount of oxygen is too low to sustain life.

November 3, 2017 15:23

Sedimentary rocks are formed by the process of sedimentation.

November 3, 2017 12:52

Although the tradition count is between 9,000 to 10,000 bird species, new research has estimated the number at a possible 18,000 species of birds.

November 2, 2017 17:55

The Florida panther is the only species of cougar found east of the Mississippi River within the USA.

November 2, 2017 17:11

Seven native forest types exist in Australia.

November 2, 2017 14:08

Several factors, especially poaching, prey depletion and habitat loss, have triggered a massive decrease in the Sumatran tiger population.

November 2, 2017 13:24

California has the highest number of homes powered by solar energy.

November 2, 2017 12:53

A shoal is a submerged or partially-submerged long and narrow ridge, normally of sand, that form in rivers and oceans.

November 2, 2017 12:32

The Great European Plain is formed where the North European Plain connects to the East European Plain.

November 2, 2017 11:56

A lone polar bear, tracks of an Arctic fox, unidentified sea creatures, and several birds have been observed at the North Pole over the years.

November 2, 2017 10:16

An alluvial plain is a large flat landform that is created from the deposition of sediment or debris over a long period by rivers from the highlands.

November 1, 2017 16:20

The Humid Subtropical Climate is mostly prevalent on the eastern sides of all continents, and is characterized by hot, humid summers, and extremely cold winters.

November 1, 2017 14:24

A caprock is a resistant rock that lies on top of a less resilient rock type.

November 1, 2017 14:11

Subarctic climates are found in the interior regions of high latitude continents.

November 1, 2017 12:59

The Saint Lawrence Seaway allows ships from the Atlantic Ocean to access the Great Lakes.

November 1, 2017 12:45

Glaciovolcanism is a special field of volcanism that is associated with glacial ice.

November 1, 2017 12:09

A desert climate is experienced in arid regions and it is characterized by very low precipitation.

November 1, 2017 11:24

There are 17 different types of planets on the basis of composition.

October 31, 2017 12:58

The name oyster actually refers to various salt-water bivalve molluscs.

October 30, 2017 18:01

Planets and planetary bodies are classified into 8 types on the basis of mass regime.

October 30, 2017 17:49