Questions

A sentence whose meaning is unclear is called as Ambiguous.

Osmosis is the process in which water molecules move from a region of higher water potential to a region of lower potential down a water potential gradient across a partially permeable membrane. It doen't requires any additional energy to do this work. 

So, Osmosis is a Passive.

Active and passive transport processes are two ways molecules and other materials move in and out of cells and cross intracellular membranes.

1. Active transport is the movement of molecules or ions against a concentration gradient (from an area of lower to higher concentration), which does not ordinarily occur, so enzymes and energy are required.

2. Passive transport is the movement of molecules or ions from an area of higher to lower concentration. Passive transport occurs because of the entropy of the system, so additional energy isn't required for it to occur.

3. Active transport requires energy to proceed, while passive transport does not require the input of extra energy to occur.

The letter 'W' is at the end of a rainbow.

Cuba

According to the Mercer’s 19th annual Quality of Living survey released Hyderabad emerged as the best city in terms of living standards among Indian cities for the third year in a row.

According to Guiness World Records, the world's oldest living man Masazo Nonaka has turned 113 years on 25 July of 2018 in Japan's Hokkaido.

Francisco Nunez Olivera was the former oldest person who died on 29th of January 2018 at the age of 112 years.

Les Colley (1898 - 1998, Australia), is the oldest ever man to father a child. He had his ninth child a son named Oswald to his third wife at the age of 92 years 10 months.

The presence of vitamin D in the body enhances the absorption of calcium by the intestine.

Nominal money relates more to it's measure of counting - so nominal figure of what is written on bill, while "real" relates more to it's purchasing power (usually between some periods of time). For instance 100 units in nominal could buy 2 units of good in 1950 and 1 unit of good in 2005, at the same time real value of this 100 nominal units are 100 real units in 1950 and 50 real units in 2005.

Same is with GDP. In nominal it can rise due to inflation while it can stay the same or even decrease in real value.