Question

9. Fill in the blanks: (a) of the velocity-time graph gives acceleration of an object (b) Every motion is to some reference. (c) For the displacement and distance travelled to be the same the taken must be straight (d) Speed is always (e) On a position-time graph, the slope of the line tells you the of the object () For your total displacement to be zero you must end up back from where you (g) Straight line parallel to time axis in a time graph shows uniform motion of an object (h) If a car accelerates, there is an in its speed (i) Acceleration of a falling object arises due to the force of 0) Wet road conditions affect the distance of a car.



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Answer 1

Answer:

Land degradation is defined as the reduction or loss of the biological or economic productivity and complexity of rainfed cropland, irrigated cropland, or range, pasture, forest or woodlands resulting from natural processes, land uses or other human activities. Land degradation is due to the activities of human hands which loses all the fertility and quality of soil. This is very dangerous to nature which causes further disasters.

Causes

Listed below are few causes of land degradation

Soil pollution

Soil Erosion

Overgrazing

Extraction of minerals at a repeated stage

Drought

Explanation:

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Answer 2

Answer:

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