柴达木的高由 东昆仑山的高山荒漠
柴达木的高山荒漠 东昆仑山的高山荒漠
Types of Deserts Believe it or not,deserts come in two varieties: hot and cold. Hot Deserts The main form of precipitation in a hot desert is rain.But that's only ten inches or less of rain per year. Cold Deserts The main form of precipitation in a cold desert is snow-but only ten inches or less per year
Types of Deserts Believe it or not, deserts come in two varieties: hot and cold. Hot Deserts The main form of precipitation in a hot desert is rain. But that's only ten inches or less of rain per year. Cold Deserts The main form of precipitation in a cold desert is snow - but only ten inches or less per year
☐DESERTS The biome map above shows that about one-fifth of the land surface of the world is desert.From the rock surface of the American Sonoran to the vast dunes of the African Sahara,deserts are not all the same.Find out why!
The biome map above shows that about one-fifth of the land surface of the world is desert. From the rock surface of the American Sonoran to the vast dunes of the African Sahara, deserts are not all the same. Find out why!
The stem of the Saguaro Cactus stores all of its water.The stem is green. Photosynthesis occurs in the top layer of the stem instead of in leaves.This plant has another adaptation that is hidden from us.This is its large net of roots- that extend far away from its trunk.How would these roots help a desert plant? The roots collect water after rain.Stored in the pleated expandable stem,the water keeps the saguaro alive until the next rain.Saguaro fruit is used in jam and woody skeletons are used in building materials.The Saguaro only grows in the Sonoran Desert
The stem of the Saguaro Cactus stores all of its water. The stem is green. Photosynthesis occurs in the top layer of the stem instead of in leaves. This plant has another adaptation that is hidden from us. This is its large net of roots - that extend far away from its trunk. How would these roots help a desert plant? The roots collect water after rain. Stored in the pleated expandable stem, the water keeps the saguaro alive until the next rain. Saguaro fruit is used in jam and woody skeletons are used in building materials. The Saguaro only grows in the Sonoran Desert