Chemistry
Grade-6
Easy
Question
Which of the following statements is incorrect?
(i) Smoke carries minute suspended matter (SPM) that causes respiratory problems.
(ii) Pollen grains can cause allergic reactions in human beings.
(iii) Global warming damages the nutrition level of leaves and plants.
- Only (i) and (ii)
- Only (i) and (iii)
- Only (ii)
- Only (iii)
Hint:
Global warming is the phenomenon of a gradual increase in the average temperature of the earth.
The correct answer is: Only (iii)
The incorrect statement is "Global warming damages the nutrition level of leaves and plants".
Related Questions to study
Chemistry
Fill in the following blanks.
(i) The pollutants like___________ is used in air conditioners and refrigerators.
(ii) __________ is present at the upper layer of the atmosphere called the stratosphere.
(iii) Pollutants like asbestos fiber can cause diseases called __________.
(iv) _________ makes the atmosphere dense and reduces visibility, leading to many road accidents.
Fill in the following blanks.
(i) The pollutants like___________ is used in air conditioners and refrigerators.
(ii) __________ is present at the upper layer of the atmosphere called the stratosphere.
(iii) Pollutants like asbestos fiber can cause diseases called __________.
(iv) _________ makes the atmosphere dense and reduces visibility, leading to many road accidents.
ChemistryGrade-6
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Identify the true and false statements from the following.
(i) The greenhouse effect is the process of trapping the Sun’s heat by some atmospheric gases.
(ii) Sulfur trioxide forms a mixture of fog known as smog that affects the eyes also.
(iii) Acid rain damages the wildlife in the ecosystem where it falls.
Identify the true and false statements from the following.
(i) The greenhouse effect is the process of trapping the Sun’s heat by some atmospheric gases.
(ii) Sulfur trioxide forms a mixture of fog known as smog that affects the eyes also.
(iii) Acid rain damages the wildlife in the ecosystem where it falls.
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The chemical formula of the greenhouse gas methane is
The chemical formula of the greenhouse gas methane is
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The sources of carbon monoxide are
The sources of carbon monoxide are
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Which of the following is not the main component of the air?
Which of the following is not the main component of the air?
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For which of the following purposes is carbon dioxide used?
For which of the following purposes is carbon dioxide used?
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Approximately how much percentage of ozone gas contributes to the greenhouse effect?
Approximately how much percentage of ozone gas contributes to the greenhouse effect?
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Which of the following activities does not cause air pollution?
Which of the following activities does not cause air pollution?
ChemistryGrade-6
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The air pollutants that are formed or emitted directly from sources are known as
The air pollutants that are formed or emitted directly from sources are known as
ChemistryGrade-6
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Match column A (inert gases) with column B (uses of inert gases).
Match column A (inert gases) with column B (uses of inert gases).
ChemistryGrade-6
Chemistry
The phenomenon of increase in the average temperature of Earth due to some unwanted gases is known as the
The phenomenon of increase in the average temperature of Earth due to some unwanted gases is known as the
ChemistryGrade-6
Chemistry
Which of the following gases act as a greenhouse gas?
Which of the following gases act as a greenhouse gas?
ChemistryGrade-6
Chemistry
Which of the following gases protect us from the harmful UV rays of the Sun?
Which of the following gases protect us from the harmful UV rays of the Sun?
ChemistryGrade-6
Chemistry
A colorless gas that decreases the blood’s ability to carry oxygen is
A colorless gas that decreases the blood’s ability to carry oxygen is
ChemistryGrade-6
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Which of the following does not depict the causes of air pollution?
Which of the following does not depict the causes of air pollution?
ChemistryGrade-6
