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Can the stem of a plant be compared with a street with two-way traffic? Give reason.
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Four pieces of wooden sticks A, B, C and D are placed along the length of 30 cm long scale as shown in the following figure. Which one of them is 3.4 cm in length?

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Which of the following figure shows the correct placement of a block along a scale for measuring its length?
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You are provided three scales A, B and C as shown in the following figure to measure a length of 10 cm.

For the correct measurement of the length you will use the scale
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SI unit of length is ______.
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Four children measure the length of a table which was about 2 m. Each of them used different ways to measure it.
- Sam measured it with a half metre long thread.
- Gurmeet measured it with a 15 cm scale from her geometry box.
- Reena measured it using her hand span.
- Salim measured it using a 5 m long measuring tape.
Which one of them would get the most accurate length? Give reason for your answer.
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While travelling in a train, it appears that the trees near the track are moving whereas co-passengers appear to be stationary. Explain the reason.
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Very Short Answer Type Questions:
Suggest any three ways you can think of to avoid wastage of food.
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Very Short Answer Type Questions:
What are the two common sources of most of the ingredients of food items?
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Give example of material that can be used again.
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Can you replace the following packaging material with those which can be recycled or reused.
Milk packets of polythene.
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Can you replace the following packaging material with those which can be recycled or reused.
Dry eatables in polythene.
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Can you replace the following packaging material with those which can be recycled or reused.
Gift items packed with shiny material.
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Can you replace the following packaging material with those which can be recycled or reused.
Glass tumblers packed in thermocol box.
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What are the uses of plastic?
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What are the demerits of plastic?
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What suggestions you will give to members of locality to solve the problem of waste material?
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Why should we be careful in using plastic bags to store cooked food items?
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What can we do to reduce overuse of plastics?
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How does the failure of rainfall affect people on the earth?
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