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. The vessels which carry carbon dioxide rich blood from all the parts of the body back to the heart are called [1] (a) Veins (b) Arteries (c) Capillaries (d) Valves 2. Which among the following is not a juicy fruit? [1] (a) Apple (b) Mango (c) Orange (d) Walnut 3. Which gas is produced when sludge is digested? [1] (a) Methane (b) Ethane (c) Propane (d) Butane 4. What do we call the network of several food chains connecting each other? [1] (a) Food web (b) Food chain (c) Food cycle (d) Trophic level 5. The mechanism that cools the plants is called [1] (a) Excretion (b) Transportation (c) Transpiration (d) Translocation 6. In Gujarat, construction of 18 check dams is being planned by an N.G.O. and the villagers on which of the following rivers? [1] (a) Saraswati River (b) Ganga River (c) Yamuna River (d) Rukmavati River CBSE Sample Paper Class 7 Science Set 3 7. Neutralisation of calcium hydroxide with hydrochloric acid is an example of [1] (a) Chemical change (b) Physical change (c) Both chemical and physical change (d) No change 8. Breaking of ozone to form oxygen is an example of which change? [1] (a) Chemical change (b) Physical change (c) Crystallisation (d) Both chemical and physical change

 . The vessels which carry carbon dioxide rich blood from all the parts of the body back to the heart are called [1] (a) Veins (b) Arteries (c) Capillaries (d) Valves 2. Which among the following is not a juicy fruit? [1] (a) Apple (b) Mango (c) Orange (d) Walnut 3. Which gas is produced when sludge is digested? [1] (a) Methane (b) Ethane (c) Propane (d) Butane 4. What do we call the network of several food chains connecting each other? [1] (a) Food web (b) Food chain (c) Food cycle (d) Trophic level 5. The mechanism that cools the plants is called [1] (a) Excretion (b) Transportation (c) Transpiration (d) Translocation 6. In Gujarat, construction of 18 check dams is being planned by an N.G.O. and the villagers on which of the following rivers? [1] (a) Saraswati River (b) Ganga River (c) Yamuna River (d) Rukmavati River CBSE Sample Paper Class 7 Science Set 3 7. Neutralisation of calcium hydroxide with hydrochloric acid is an example of [1] (a) Chemical change (b) Physical change (c) Both chemical and physical change (d) No change 8. Breaking of ozone to form oxygen is an example of which change? [1] (a) Chemical change (b) Physical change (c) Crystallisation (d) Both chemical and physical change

Grade:7

1 Answers

Vikas Amritiya
askIITians Faculty 230 Points
2 years ago
GOoD question
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