Questions

RNA acts as a messenger in between the DNA and ribosome as it transforms the genetic information from the DNA and as DNA is big and can't fit into the nuclear pores. 

The standard deduction of Rs. 40,000 is seek to provide relief to salaried tax payers in the Budget proposals in place of the present exemption allowed for transport allowance and reimbursement of miscellaneous medical expenses.

The geosphere is the earth's solid rock or rigid outer layer known as the crust. Without the geosphere it would not be possible for humans to live on the planet. The function of the geosphere serving as the interface between the other spheres.

Former India captain Mahendra Singh Dhoni became the first wicketkeeper in world cricket to effect 100 stumpings in One Day Internationals. He broke the record of former Sri Lankan captain Kumar Sangakkara.

The troposphere is the lowest layer of the atmosphere and where most clouds are. That means all weather is in the troposphere. Almost all weather occurs in the Troposphere, basically, the lowest layer that goes up to about 10 - 15 kms.

"The moon smiled at me" is the example of personification in the given options.

Personification is a technique in which we give objects human traits like emotions, gestures, speech,... by using metaphor. 

Here moon is an object which cannot smile but using metaphor sense, we gave that sense to it.

Calculation of molar mass of HNO3:

Atomic masses of H, N, O are 1, 14, 16 respectively

Now the molar mass of HNO3 is

HNO3 = 1X1 + 1X14 + 3X16

= 1 + 14 + 48

= 63 g/mol or amu.