AP BIOLOGY

ECOLOGY

CHEMICAL CYCLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which statement best explains why a community many kilometres away could be affected by a leaking landfill site?
A
Water can dissolve a wide range of substances and transport them great distances.
B
Water that is trapped as ground water cannot be used for human activity.
C
Water has special cohesive and adhesive properties.
D
Water is a product of cellular respiration and is required for photosynthesis.
Explanation: 

Detailed explanation-1: -What conditions affect landfill gas production? The rate and volume of landfill gas produced at a specific site depend on the characteristics of the waste (e.g., composition and age of the refuse) and a number of environmental factors (e.g., the presence of oxygen in the landfill, moisture content, and temperature).

Detailed explanation-2: -Areas near landfills have a greater possibility of groundwater contamination because of the potential pollution source of leachate originating from the nearby dumping site. Such contamination of groundwater results in a substantial risk to local groundwater resource user and to the natural environment.

Detailed explanation-3: -Previous research shows that people living closer to landfill sites suffer from medical conditions such as asthma, cuts, diarrhoea, stomach pain, reoccurring flu, cholera, malaria, cough, skin irritation, cholera, diarrhoea and tuberculosis more than the people living far away from landfill sites [31, 32, 33, 34, 35, 36].

Detailed explanation-4: -Solid waste that cannot be recycled can be treated or disposed of by landfill or thermal processing. The two main environmental problems from landfill are leachate, which can contaminate water sources, and landfill gas, which is a greenhouse gas and is flammable.

There is 1 question to complete.