Investigating Planet Earth

Study the structure of planet Earth - [IMAGE] Crust: This area is thinner than other layers on Earth. Its thickness ranges from 10 kilometers to 65 kilometers deep. The crust is made of light rocks floating on the mantle. This layer contains the continents and rocks under the sea. The thickness of the Earth's crust may be a bit misleading ... From the perspective point of view, we have built many deep mines, but nobody has yet reached the basement.

57 minutes was originally aired as part of the second season of the public TV series: Earth Tour. Explore the serious threat of one of our most precious natural resources and travel to inner Mongolia, Kenya, South Africa, Argentina and the western United States. The grassland covers nearly one-third of the surface of the earth and contains about 1 billion people and there is a danger of disappearing. 24 minutes in the center of nature. Native plants community of the Great Plains. Plants are adapted to extreme heat and limited water supply as dry grasslands or grasslands of grasslands are communities where water and soil are the main limiting factors. A total of 5 grasses, 1 shrub and 17 weeds were confirmed

Geology is a major earth science. That word means "to study the earth". Geology includes the material composition of the earth, the structure of the earth, and the processes of the earth. It also focuses on how the Earth's creatures and the Earth change over time. Geologists look for fuels and minerals, study natural disasters, and work to protect the environment of the earth. Map the lava flow: Volcanologist Vollanologist Charlie Bacon of the US Geological Survey divides the prehistoric lava flow boundary of Alaska Mount Vennia Minnov into a map. This map shows areas covered by past lava eruptions and can be used to estimate the potential impact of future volcanic eruptions. Alaska scientists are often spraying guns (foreground) and pepper to prevent grizzly bears. Rucksacks are full of food and life support tools, and there are helicopters called bidirectional radios. Charlie's Orange Overalls help the pilot find him on the date of pickup. Image courtesy: US Geological Survey / Alaska Volcano Observatory Charlie Bacon