Which of the following statements is/are correct? 1.Air close to the Earth's surface is heavier. 2.Air close to the Earth's surface contains larger quantity of water vapour and dust particles Select the correct answer using the code given below

Which of the following statements is/are correct? 1.Air close to the

1.	Which of the following statements is/are correct? 1.Air close to the Earth's surface is heavier. 2.Air close to the Earth's surface contains larger quantity of water vapour and dust particles Select the correct answer using the code given below
Answer» 1 only 2 only Both 1 and 2 Neither1 nor 2 Solution : At higher altitude AIR is lighter while close to earth surface its heavier. In Troposphere the DUST PARTICLES and WATER is more than upper layer