Ozone layer is present in
1). Troposphere
2). Ionosphere
3). Stratosphere
4). Exosphere
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1. Haloarenes are more stable than haloalkanes due to
2. Which one of the following is not a fertilizer?
3. Taj Mahal is greatly affected due to :
4. Higher concentration of nitrogen dioxide in atmosphere air causes
5. A is an agreement between the communicating parties on how communication is to proceed.
6. What is the covalency of nitrogen in ammonia molecule
7. Which one is the most dense liquid from the below?
8. Question 14.25:What are the different types of RNA found in the cell?
9. Nuclear energy is a mineralbased energy source. It is derived from