Identifying isotopes
identify the parent isotope and daughter isotope in this nuclear reaction:
ram rn+ he
which is the parent isotope?

The parent isotope in the given elements is Radium 226.

Explanation:

The two elements given in the question are radioactive elements radon and Helium which are formed after an Alpha decay happens in the radium 226 to form Radon 222.

Radon has many isotopes out of which here radon 222 is formed which is a noble gas that is odourless colourless but Radioactive.  Again in this reaction helium is formed which is again a noble gas and very light in weight.

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.