Cactus mostly grow in arid environment. Some are cylindrical, with a height of more than 65,438+00 meters and a weight of about 20,000 to 30,000 kilograms. They stand tall and spectacular. Some prickly cacti, some of which live for more than 500 years, can grow into giant balls with a diameter of two or three meters. People cut the upper part of it and dig soft and juicy stem meat to quench their thirst. Cactus also has a special ability. In the dry season, it can go into a dormant state without eating or drinking, minimizing the consumption of nutrients and water in the body. When the rainy season comes, they wake up very sensitively, and their roots immediately become active, absorbing a lot of water, making plants grow rapidly and blossom and bear fruit quickly. The roots of some cactus plants will turn into carrots, which can store 70 or 80 kilograms of water. Someone once put a cactus in a dry paper bag for more than two years. Although some of them withered, one cactus was put into a flowerpot. After watering, it quickly grew new roots and resumed its growth. Cactus is appreciated by human beings for its wonderful structure, amazing drought tolerance and tenacious vitality.

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