This type would be debris and grit pollutants. Sewage treatment plants separate this type of pollutants from the water and clean the water making it available for further use. It is basically recycling of water, so you should not drop it into the toilet, but if you do it will be cleaned eventually and removed from the water.
Explanation:
I infer this is the clear rendering of the text:
"Establishes the typical fauna and the adaptations of the animals to the environmental conditions by studying the respective images from the cahul".
What i infe from the text is that, it is talking about the biological term called adaptation. Put simply adaptation is a study of how living things in their quest for survival, change to the state of their immediate environment by exhibiting certain features.
60% change from 500 to 800
Explanation:
deforestation, watering, agriculture, mining
My answer for this question is A London