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ella [17]
3 years ago
6

Wetlands areas around an urban parking lot can filter out some of the chemical pollutants from the parking lot before they reach

the groundwater.
true or false
Biology
2 answers:
Harlamova29_29 [7]3 years ago
8 0
I bealeve it is true 
yawa3891 [41]3 years ago
8 0

Answer: True

Explanation: Wetlands are the shallow lands occupied either seasonally or permanently with water. The wetlands are formed by the water of lakes, ponds, rainfall, agricultural irrigation, rivers and oceans. In the given situation, a wetland at the parking lot will filter the chemical pollutants like fuels of the vehicles. This will prevent the polluted water to be drained in an unpolluted water source like a groundwater.          

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Answer:

The correct answer is 7.5 ml

Explanation:

The medicine contains 100 mg in 5 ml, that means that the concentration of the active ingredient is 100 mg/5 ml= 20 mg/ml

If we divide a concentration (in mg/ml) into a mass (in mg) we obtaine a volume (in mL). Thus, in order to calculate the mililiters of medicine which contain 150 mg of the active, we have to only divide mass (150 mg) into the concentration of active ingredient as follows:

mL = \frac{150 mg}{20 mg/mL}= 7.5 mL

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