Social Sciences, asked by chaithrachaithra825, 7 months ago

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Answered by kanak792
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1) a) The Prehistoric Period—or when there was human life before records documented human activity—roughly dates from 2.5 million years ago to 1,200 B.C. It is generally categorized in three archaeological periods: the Stone Age, Bronze Age and Iron Age

b) Evidence indicates they were created to serve as potter's wheels around 3500 B.C. in Mesopotamia—300 years before someone figured out to use them for chariots. The ancient Greeks invented Western philosophy…and the wheelbarrow

c) A monsoon is a seasonal change in the direction of the prevailing, or strongest, winds of a region. Monsoons cause wet and dry seasons throughout much of the tropics. Monsoons are most often associated with the Indian Ocean.

Monsoons always blow from cold to warm regions. The summer monsoon and the winter monsoon determine the climate for most of India and Southeast Asia.

Summer Monsoon

The summer monsoon is associated with heavy rainfall. It usually happens between April and September. As winter ends, warm, moist air from the southwest Indian Ocean blows toward countries like India, Sri Lanka, Bangladesh, and Myanmar. The summer monsoon brings a humid climate and torrential rainfall to these areas.

India and Southeast Asia depend on the summer monsoon. Agriculture, for example, relies on the yearly rain. Many areas in these countries do not have large irrigation systems surrounding lakes, rivers, or snowmelt areas. Aquifers, or supplies of underground water, are shallow. The summer monsoon fills wells and aquifers for the rest of the year. Rice and tea are some crops that rely on the summer monsoon. Dairy farms, which help make India the largest milk producer in the world, also depend on the monsoon rains to keep cows healthy and well-fed.

Industry in India and Southeast Asia also relies on the summer monsoon. A great deal of electricity in the region is produced by hydroelectric power plants, which are driven by water collected during the monsoons. Electricity powers hospitals, schools, and businesses that help the economies of these areas develop.

When the summer monsoon is late or weak, the regions economy suffers. Fewer people can grow their own food, and large agribusinesses do not have produce to sell. Governments must import food. Electricity becomes more expensive, sometimes limiting development to large businesses and wealthy individuals. The summer monsoon has been called Indias true finance minister.

Heavy summer monsoons can cause great damage. Residents of such urban areas as Mumbai, India, are used to the streets flooding with almost half a meter (1.5 feet) of water every summer

2) a) The elements affecting the climate are latitude, altitude and pressure and winds, distance from the sea (continentality), ocean currents and relief features.

Latitude and altitude: The most important climatic control is latitude. Latitude affects the temperature of a place. The places situated at higher altitudes which are far from equator receive less sunlight and places which are located towards the equator which is a 00 latitude receives more sunlight and are hotter than the places located at higher latitudes. Sunlight also affects precipitation or rainfall. Thus latitudinal position of a region decides the climate of the place.

Continentality is defined as measure of difference between continental and marine climates. As the distance from sea increases this moderating effect decreases and people face extreme weather conditions

Winds and air masses originate over oceans move onshore to the mainland and affect climate.

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