"Green Mufler" is nothing but a plantation of 5-6 rows of dense trees around highways, housing societies to reduce noise pollution. It acts as filter out the noise and does not let it reach out the populated area.
CTET Solved Paper MCQ - UPTET December 2016
Primary consumers are animals that eat primary producers
(plants). They are also called herbivores. Secondary consumers eat primary consumers are called carnivores.
The way in which an element or compound such as water moves between its various living and non-living forms and locations in the biosphere is called a bio-geochemical cycle.

