Class 10 Biology MCQs - Chapter 7

Man and Environment Multiple Choice Questions (MCQ) PDF - 36

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Man and Environment Questions & Answers PDF Download: MCQ Quiz 36

MCQ 176: The autotrophs present in an ecosystem are called

A) primary consumers

B) secondary consumers

C) decomposers

D) producers

MCQ 177: The parasites that live inside the host's body are called

A) temporary parasites

B) ectoparasite

C) endoparasite

D) permanent parasites

MCQ 178: Recycling of one ton of paper can save

A) 120 trees

B) 130 trees

C) 17 trees

D) 18 trees

MCQ 179: In 2010 the human population was

A) 172510000

B) 171510000

C) 170520000

D) 173510000

MCQ 180: The thickness of biosphere is

A) 20 Km

B) 30 Km

C) 40 Km

D) 50 Km

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