Fill in the blanks with suitable words
1. Waste incineration releases mainly_____.
2. Detergents cause a decrease in the______content of water.
3. Ozone in the atmosphere protects us from harmful____radiation.
4. Oxides of nitrogen and sulphur are mainly responsible for causing_____.
5. Noise beyond_____is dangerous to human ear.
DSERT Class 10 Science Ch 2 Environmental Issues
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1. emissions of dioxins, furans. or,
2. acidity
3. ultraviolet rays
4. acidity? pollution? smell? corrosion?
5. 120 decibels - human (hearing) audible limit.
2. acidity
3. ultraviolet rays
4. acidity? pollution? smell? corrosion?
5. 120 decibels - human (hearing) audible limit.
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