CBSE (Central Board of Secondary Education- Board Exam) Class-7 Science: Questions 233 - 239 of 322
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Question number: 233
» Soil » Properties of Soil » Absorption of Water by Soil
Question
In which type of soil if water applied quickly it puddles or run off before being absorbed:
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Clayey soil |
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| b. | Loamy soil |
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| c. | Sandy soil |
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| d. | Question does not provide sufficient data or is vague |
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Question number: 234
» Respiration in Organisms » Breathing » Breathing Rate
Question
Our breathing rate increases with:
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Altitude |
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| b. | Age and anxiety |
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| c. | Physical activity |
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| d. | All a. , b. and c. are correct |
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Question number: 235
» Winds, Storms and Cyclones » Wind Currents » Uneven Heating Between Equator and the Poles
Question
Uneven heating between the equator and the poles forms
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Westerlies |
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| b. | Trade winds |
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| c. | Wind circulation from the poles to the warmer latitudes |
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| d. | All a. , b. and c. are correct |
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Question number: 236
» Winds, Storms and Cyclones » Air » Wind
Question
Moving air is called as:
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Lift |
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| b. | Wind |
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| c. | Wind current |
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| d. | None of the above |
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Question number: 237
» Winds, Storms and Cyclones » Air » Air Exerts Pressure
Question
Atmospheric pressure is defined as:
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | The pressure exerted by the gases in the atmosphere on the surface of the earth |
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| b. | Moving air |
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| c. | Air that covers the earth in a thick blanket |
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| d. | Force per unit area exerted by a gas |
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Question number: 238
» Winds, Storms and Cyclones » Air » High Speed Winds and Reduced Air Pressure
Question
Lift is defined as:
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | The less the speed of the wind, the lesser will be the air pressure |
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| b. | The more the speed of the wind, the lesser will be the air pressure |
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| c. | The low pressure created by rising warm air and falling cool air |
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| d. | None of the above |
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Question number: 239
» Wastewater Story » Waste Water Treatment Plant » Water Clarifier
Question
In secondary clarifier sludge is used as:
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Manure |
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| b. | Construction materials |
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| c. | Fertilizers |
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| d. | All a. , b. and c. are correct |
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