Answer: 550 million years ago according to the internet.
Explanation:
Climatic zones are distinct areas on the earth that share the same climatic conditions. There are 4 main climatic zones; tropical, subtropical, temperate, and cold climatic zones. These climatic zones are defined by their latitudes. They also have climatic ranges depending on the position of the sun with regard to the earth and its orbit. This is in retrospect of the fact that the earth is utilized 22.5 degrees on its axis.
<span>Worldwide, industry accounts for about 24 percent of all water use, but this is an average amount. Industrial water use can be as much as 70 percent in some highly industrialized European countries or as low as 5 percent in less industrialized countries, such as Bolivia. Most of industrial water is used as a cooling agent for power plants, but unlike agricultural water use, the majority of the water is non-consumptive. Industrial plants usually draw water out of a river or ocean, use it for cooling their equipment, and then return the water to its origins. If care is taken to avoid contamination, the water is not degraded or polluted, and it can be used again for other purpose</span>
Answer:
Grasslands and herbivores have a mutually beneficial symbiotic relationship. If larger herbivores such as Kangaroos and Elephants are removed from them, they may become extant.
Explanation:
Herbivores are always hungry and they are always looking for ways to replenish lost energy. Between tree shoots and grass, they often go for the former because they are tender, easier to reach, and less difficult to masticate than the young tree shrubs.
When baby trees become bigger, their shade prevents adequate sunlight from reaching the grass, then gradually they become scanty or subdued for as long as the shade remains.
When large herbivores are removed or leave a grassland, trees have the ability to flourish. Then the results indicated above happens.
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