Why does the vegetation vary from place to place on the earth?
Environment issues are the cause of the variation. The local climate should lie within certain bounds for the following variables: - temperature, soil moisture, rainfall, wind regime, soil types including such things as pH,and lime or iron values.
At higher altitudes the UV will be stronger, and the sunlight intensity likewise.
Certain plants need a low pH and others a higher pH.
Some plants want a swamp life (or even salt water such as Mangroves and seaweeds).
Some plants like a desert.
Mountain plants must be able to stand high winds, and low temperatures.
And some plants need a rich soil, and others a stony one.
Many plants are quite tolerant, and the main needs are water and sufficient sun.
And of course, flowering plants need insect fertilization, sometimes a very particular bee or wasp (check Brazil Nuts, and Figs). And trees with large seeds may need birds to carry their seeds to distant places.
Yes, the weight of an object vary on earth surfaxe from place to place. As we know weight is directly proportional to acceleration due to gravity and acceleration due to gravity is inversly proportional to the distance between the earths center and surface . The land structure of earth is same all over the world. It is somewhat flattened at the poles and bulged at equator.similarly there are high mountains,seas,hill,valleys,etc on earth surface. This makes…
That depends on how exact you want to be. It is extremely close to being even, but the strength of gravity does vary by extremely slight amounts at different points on the earth's surface. This, of course, means that the mass of the earth does vary ever so slightly from place to place. You would need extremely sensitive instruments to detect this variation.
India is a big country which is also touching the sea. The part touching the sea has different type of vegetation. And the other parts have different vegetation. As vegetation depends on climate on which the season depends so season changes as the climatic factors change which depends on the vegetation. So different vegetation means different climate which refers to different season.