Hydrosphere is the answer because the islands and continents belong to water and hydro means water so this means water sphere
Answer: The Andes
Explanation: The Andes is also called Andes Mountains, and it is a mountain system of South America that consist of a huge number of extremely high plateaus, which are surmounted by even higher peaks that form an unbroken ridge over a distance of some 5,500 miles. This ridge extends from the southern tip of South America to the continent’s northernmost coast on the Caribbean.
Hulun Buir Grassland is located in northern China; bordering Mongolia and Russia. Its geological classification is high steppes grassland - grassland plains without any tree. It was formed, along with the surrounding lakes, as part of the Mongolia Highlands by the tectonic collision of India into Asia.
Troposphere is the layer where the air is thin as well as very warm
