The ratio of starlight to sunlight is much, much smaller than 0.5%. A value of 0.0000001% is far more accurate.
Edmonton: 10pm
thunder bay: 12am
halifax: 1am
gander: 1:30am
Agriculture can prove extremely difficult to maintain on a rocky mountain and with such poor infrastructure it is also difficult to import goods on a JIT (Just In Time) sort of basis where you receive these goods as you need them. Infrastructure also includes communication and other services and with such a technologically developed era we depend on technology and this can deter a lot of people from settling in these regions, additionally the wildlife in these regions consists greatly of predators which can be deemed a threat to habitants who are unprepared. The sheer abundance of wildlife and non industrial landscapes can also mean that people will not want to live in these regions
Answer: The answer is C). Nitrates
Explanation: Animal wastes and nitrogen-containing fertilizers are used to grow plants and they contain nitrates. Nitrogen exists naturally in soils, typically bound to organic matter and mineral soil material. When these fertilizers are used, they increase the concentration of nitrates in the environment, especially in the soil.
Favelas are found in Rio de Janeiro. hope this helps :)
