Environment

Estivation, or aestivation, is a type of animal dormancy similar to hibernation that takes place during hot and dry periods.

October 9, 2018 15:59

Polar nights are classified into distinct types depending on the nature of the twilight.

October 9, 2018 13:14

A drought often leads to heavy economic losses in the affected area.

October 9, 2018 13:04

The Dnieper is the of the major rivers of Europe.

October 5, 2018 12:56

A waterspout is a type of tornado that occurs over water bodies that pulls water upwards.

October 4, 2018 17:55

Ground fires are more difficult to put out than surface fires.

October 3, 2018 15:48

Several theories have been proposed to explain the extinction of the woolly mammoths.

October 3, 2018 15:11

An evergreen tree is one that has leaves throughout the year.

October 2, 2018 11:49

Honey bees are important pollinators.

October 2, 2018 09:13

Whales and dolphins are both cetaceans but with major differences among them.

October 1, 2018 17:48

Fruits of the species in the Wolffia genus are the smallest and lightest fruits known to us.

October 1, 2018 15:52

The Atlantic giant pumpkin is the world's heaviest fruit.

October 1, 2018 15:49

China, the United States, Brazil, and Canada lead the world in renewable energy production.

October 1, 2018 12:38

Droughts often trigger mass migrations of people from drought-stricken areas in search of better living conditions elsewhere.

September 28, 2018 17:05

A Category 6 hurricane is the deadliest hurricane that can possibly strike an area.

September 28, 2018 17:04

Many food chains begin with algae.

September 28, 2018 14:56

There a few animals that can survive for years without drinking any water.

September 28, 2018 13:12

A snow squall is similar to a whiteout or blizzard, with heavy snowfall and blowing winds.

September 27, 2018 12:13

Soil pollution can lead to air and water contamination.

September 27, 2018 11:41

The Aleutian Range begins in southwest Alaska.

September 27, 2018 11:04