Which statement is false?

Options

A. 80 dB and above sound level causes noise pollution
B. UNEP stands for United Nations Environment Programme.
C. Steps taken by India for controlling air pollution include use of CNG as fuel by buses and trucks
D. None

Answer

To determine which statement is false, we need to analyze each statement provided in the question.

### Step-by-Step Solution:

1. **Examine the First Statement:**
- The statement mentions that "the sound level greater than 80 decibels will be called noise pollution."
- **Analysis:** This is true. Noise pollution is indeed defined as sound levels that exceed 80 decibels.

2. **Examine the Second Statement:**
- The statement states that "UNEP stands for United Nations Environment Program."
- **Analysis:** This is also true. UNEP is the acronym for the United Nations Environment Programme, established in 1972.

3. **Examine the Third Statement:**
- The statement claims that "steps taken by India for controlling air pollution include the use of CNG as fuel by buses and trucks."
- **Analysis:** This statement is true as well. India has implemented the use of Compressed Natural Gas (CNG) in public transport to help reduce air pollution.

4. **Examine the Fourth Statement:**
- The fourth option is "NAN" (Not a Number).
- **Analysis:** Since all the previous statements are true, the fourth option "NAN" implies that there is no false statement among the first three. Therefore, this statement is false because it suggests that no false statements exist when, in fact, we are looking for one.

### Conclusion:
The false statement is the fourth option, "NAN," as it incorrectly implies that none of the previous statements are false.

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