Answer:
A large part of South Asia receives rainfall mainly during the Indian Summer Monsoon (ISM) season of the year (Jun–Sep). The socioeconomic conditions of most of the developing countries in this region largely depend on the ISM rains. It also played important roles in rise and collapse of ancient civilizations in this region. However, the influence of the ISM on Indian ancient civilizations has not yet been fully explored though there were some attempts to correlate monsoon variation with their rise and fall. For example, in the mid to late Holocene period, Indus Valley or Harappan Civilization flourished in the western part of India from its early development, through its urbanization and eventual transformation into a rural society. Probably a prolonged decrease in the ISM rainfall caused the decline in the urban phase of the Indus Civilization around the 4.2 kyr BP global climate event. Another well-recorded early Holocene global climate event is the 8.2 kyr BP cooling event which also reportedly influenced ISM significantly, but its impact on human settlement is not clear in this region. The present study is a comprehensive review of the archaeological and climatological researches carried out on the role of ISM variability on the rise and fall of ancient Indian civilizations for the most part of the ongoing interglacial period, the Holocene. The review covers the studies on the period of the last 10 kyr as evidence suggests that human settlement and cultural developments in this region started around the beginning of this period. We have noted that the existing studies are mostly restricted to vague qualitative analysis of the weakening/strengthening of the ISM, and researches related to quantitative estimations of changes of the monsoon strengths and durations of drought events that caused collapse of civilizations are limited. Therefore, in the present analysis, emphasis has also been given on the requirement of estimating the absolute changes that might have caused cultural shifts. Some possible ways to quantitatively estimate the changes of some climate parameters are discussed.
The statements that hold true regarding the undefinable terms in geometry include,
- A point’s location on the coordinate plane is indicated by an ordered pair, (x, y).
- A plane consists of an infinite set of points.
Therefore, the options A and E hold true.
<h3>What is the significance of geometry?</h3>
In the study of geometry, a point, which contains a coordinated plane, is indicated with the help of variables. Geometry also recommends that a plane consists of infinite set of point, and there is no limit on the number of lines that can pass through a point on the plane.
Therefore, the options A and E hold true and state regarding the significance of geometry.
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Answer:
. Galileo Galilei was the first astronomer to use a telescope to study the heavens. Galileo made a number of observations that finally helped convince people that the Sun-centered solar system model (the heliocentric model), as proposed by Copernicus, was correct.
Explanation:
Answer: The correct option is A. Agriculture and Industry.
Explanation:
The primary activities are of great importance in india, it is thanks to this that india is the second largest agricultural producer in the world. India is the largest producer of many fruits, milk, spices, meats, coconuts, tea, ginger among others. It is also the second largest producer of wheat, rice, sugar and peanuts.
The indian industrial sector employs more than 100 million people. The main industries are textiles, processed foods, chemical products, transport equipment, steel, cement, petroleum, software and medicines.
