Questions

We know that polar substances are soluble in polar solvents and non polar substances are soluble in non-polar solvents only. Here the hydrocarbons are non-polar molecular substances and water is a polar solvent. So water can't dissolve hydrocabons.

Hence, as hydrocarbons are non-polar substances, they are insoluble in water as it is a highly polar solvent. 

Fertile alluvial soil sufficient water supply  and optimum temperatures are the reasons behind the high output of paddy here. Also known as the 'Granary of the South', it is located in Tamil Nadu.

A salary is best described as a fixed amount of income that is paid to an individual on a weekly, bi-weekly or monthly basis.

A salary can also be described as the annual earnings paid out over a year.

violation

Arsia Mons is among the three volcanos of the planet Mars. Arsia Mons is a shield volcano with a slow slope. Arsia Mons is thirty times in volumes of Mauna Loa in Hawaii, the largest volcano on Earth.