@⇒ Ecosystem and biosphere ⇒ General Knowledge Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, short cut notes, rapid fire notes, best theory

Home⇒ Everyday Science GK⇒ Ecosystem and biosphere

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Q1.	The natural process of the Earth's atmosphere heating through the trapping of reradiated infrared radiation is known as
A.	the greenhouse effect [Correct Answer]
B.	thermal inversion [Wrong Answer]
C.	solar heating [Wrong Answer]
D.	global warming [Wrong Answer]
View Answer 7 -5 Explanation:- Answer : A Discuss it below : Click here for more comments


Q2.	About how much of the world's land area is tropical rainforest?
A.	0.02 [Wrong Answer]
B.	0.07 [Correct Answer]
C.	0.1 [Wrong Answer]
D.	0.15 [Wrong Answer]
View Answer 2 -3 Explanation:- Answer : B Discuss it below : Click here for more comments


Q3.	According to your text, what can "be thought of as the genetic library that keeps life going on Earth"?
A.	a bioengineering lab [Wrong Answer]
B.	human genes [Wrong Answer]
C.	the human genome project [Correct Answer]
D.	biodiversity [Wrong Answer]
View Answer 3 -10 Explanation:- Answer : C Discuss it below : Click here for more comments


Q4.	The world's growing appetite for what food product is a leading cause of tropical deforestation?
A.	pork [Wrong Answer]
B.	sugar [Wrong Answer]
C.	lamb [Wrong Answer]
D.	beef [Correct Answer]
View Answer 2 -2 Explanation:- Answer : D Discuss it below : Click here for more comments


Q5.	In which of the following areas do international environmental treaties exist?
A.	whaling ocean & pollution [Wrong Answer]
B.	fisheries [Wrong Answer]
C.	protection of wildlife species [Wrong Answer]
D.	all of the above [Correct Answer]
View Answer 1 -2 Explanation:- Answer : D Discuss it below : Click here for more comments

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