I would say that housing availability, inadequate services, pollution and migration from rural areas all present challenges to the regional urban areas but not reduced population. If there is migration to the cities then these above three problems must be dealt with to accommodate the new citizens.
Answer:
The required efficiency of BOD5 removal of the plant needs to be at least 91%
Explanation:
Even though a WWTP (Waste water treatment plant) has several unit operations, it needs to have an overall treatment efficiency. In this case, it is only required to know how much BOD5 do we need to lower by removing organic matter from the water. It goes as following:
This will work for any efficiency, for any parameter you need to define. They need to be in the same concentration unit, of course.
Replacing known values, we have:
Which we will approximate to 91%, because decimal percentages do not say anything and are not currently used.
Answer:
Their months are based on observations of the lunar cycle, with intercalation being used to bring them into general agreement with the solar year. ... Synodic months are 29 or 30 days in length, making a lunar year of 12 months about 11 days shorter than a solar year.
Answer and Explanation:
In case, the major ocean currents stops or slows down, the heat distribution on the Earth will be affected in the following ways:
- There would be quite significant climatic changes.
- It affects one of the major phenomena in the ocean , the thermohaline circulation of the ocean which is responsible for the supply of heat to the polar areas.
- Heat distribution is affected in such a way that keeps the warm water of the equatorial region remains in the same region and can not delivered to the polar areas.
- This phenomena results in more heat in the equatorial region and colder polar areas.
