Because all cactus have large sacks in them like camels that hold water.
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A cactus
The cactus is a plant that usually thrives in a dry environment.
A cactus is a type of plant that has adapted to very dry conditions.
No, a cactus has no leaves. Over millions of years the plant has evolved to adapt to its dry environment. The leaves have been turned into stout spines that help protect the plant and all photosynthesis takes place in the stem of the plants.
In most species the stem has evolved to be photosynthetic and succulent,while the leaves have evolved into spines,this helps it adapt to hot and dry environments.
when the cactus is none of sun it can survive
a cactus http://www.roythehandyman.co.uk
it is because cactus can survive in the desert so it is found in Atacama Desert.
there environment was dry and cold very very cold.
They built windmills and plows
Some deserts are very hot and dry. Some are cold and dry.
they store food in their hump