Answer: a. Discharged, untreated, into surface waters.
Explanation:
Most of the waste water and sewage water is left untreated into the surrounding soil or water which is the main cause of pollution. Due to lack of drainage system or septic chemical treatment the sewage water drain from major cities is discharged into the surface water untreated. This water can deteriorate the quality of portable water and can affect the population of many aquatic species reducing the aquatic biodiversity. The sewage discharge consists of nitrogen and phosphorus like minerals which can result in algal bloom causing eutrophication.
Answer:
strategy the Americans used to their advantage was the use of guerrilla warfare, which many of them had learned as soldiers during the French and Indian War in the 1750s-60s.the Americans used propaganda, such as Thomas Paine’s Common Sense pamphlet, to pressure British citizens not to support a war against their American brothers, which was greatly effective in undermining support in Britain for the long and costly war. “John Alden, writing in the late 1960s: ‘The Americans had only to keep the field until Britain should tire of the struggle.’
Explanation:
Answer:
c. concrete operations
Explanation:
Concrete operations: This is the third stage in the cognitive development theory which is given by Jean Piaget. This stage starts in middle childhood from the age of seven and lasts around eleven years. It is distinguished by the development of rationale, logical, and organised thinking in an individual.
According to Piaget, the concrete operations developmental stage is involved.
A pneumothorax is that he got a collasped lung and that could be the case
Explanation:
В.Erosion causes tropical climates in Africa to
change into desert climates that cannot
support life.
