Indicate the type of climate of the following areas:
(a) Jammu and Kashmir: _________________________________
(b) Kerala: ____________________________________________
(c) Rajasthan: __________________________________________
(d) North-east India: _____________________________________
(a) Jammu and Kashmir- The climate of Jammu region is moderate because in winters temperature become too low and in summers temperature becomes too high; whereas in Kashmir region the climate is quite pleasant.
(b) Kerala- Kerala has also quite and pleasant weather throughout the year. It contains humidity with average temperature 37ºC throughout the year.
(c) Rajasthan: The climate of Rajasthan is generally arid or semi-arid, is also an desert area which receives very less rainfall and contains high temperature or low humidity.
(d) North-east India- The climate of North-east India is moderate. They have cool summers and cold winters; for example: Mizoram. North-east shows the tropical climate.
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Classify the changes involved in the following processes as physical or chemical changes:
(a) Photosynthesis
(b) Dissolving sugar in water
(c) Burning of coal
(d) Melting of wax
(e) Beating aluminium to make aluminium foil
(f ) Digestion of food - Q:-
Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words.
Down Across
(D) 1 : Thorough washing (A) 1 : Keeps warm
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An iron ball at 40°C is dropped in a mug containing water at 40°C. The heat will
(a) flow from iron ball to water.
(b) not flow from iron ball to water or from water to iron ball.
(c) flow from water to iron ball.
(d) increase the temperature of both. - Q:-
Write one similarity and one difference between the nutrition in amoeba and human beings.
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When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. What type of change is it? Explain.
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Match the items in Column I with those in Column II:
Column I Column II
(i) A home for living organisms (a) Large particles
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(iii) Sandy soil (c) Dark in colour
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One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be
(a) 80°C (b) more than 50°C but less than 80°C
(c) 20°C (d) between 30°C and 50°C
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(iv) Soil helps forests to grow and regenerate - Q:-
Classify the changes involved in the following processes as physical or chemical changes:
(a) Photosynthesis
(b) Dissolving sugar in water
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(d) Melting of wax
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Fill in the blanks:
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(iii) The two regions of the earth with extreme climatic conditions are ___________ and __________. - Q:-
One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be
(a) 80°C (b) more than 50°C but less than 80°C
(c) 20°C (d) between 30°C and 50°C
- NCERT Chapter