The correct answer is - 75-80%.
The haze is a hazardous occurrence. It is a slight obscuration of the lower atmosphere, and the cause for its occurrence are the fine suspended particles. Thus we can conclude that the haze is actually caused by pollution of the air.
While the haze typically is a dry air phenomenon, it can also be a wet one if the conditions are right, though that happens relatively rarely. If the humidity in the air is 75-80% than the tiny aerosol particles of the dry haze start to act as condensation nuclei, resulting in a wet haze.
The work you put into something is the energy it has afterward (neglecting friction and other so-called non-conservative forces). This is called the work-energy theorem. Think of objects in a gravitational field as "energy piggy banks". If you put X joules of energy into it, that energy will be there as potential energy, stored for later. So if you do 144J of work to elevate the bucket from an initial position, what ever it is initially, the final gravitational energy is 144J greater than before.
One major obstacle to developing good human relations is that man is fearful by nature. There are risks involved in developing human relations, and humans are mostly too scared to take those risks. Majority of humans are comfortable with staying in their own comfort zones, and would like to avoid the hassle of getting to know others.