Home⇒ Everyday Science GK⇒ Ecosystem and biosphere
| Note:- You can add tough questions into your favourite list for second revision. |
| Q1 ⇒ The natural process of the Earth's
atmosphere heating through the
trapping of reradiated infrared
radiation is known as the greenhouse effect [other wrong options] [Discuss in forum] |
| Q2 ⇒ About how much of the world's
land area is tropical rainforest? 0.07 [other wrong options] [Discuss in forum] |
| Q3 ⇒ According to your text, what can
"be thought of as the genetic library
that keeps life going on Earth"? the human genome project [other wrong options] [Discuss in forum] |
| Q4 ⇒ The world's growing appetite for
what food product is a leading
cause of tropical deforestation? beef [other wrong options] [Discuss in forum] |
| Q5 ⇒ In which of the following areas do
international environmental treaties
exist? all of the above [other wrong options] [Discuss in forum] |
| Q6 ⇒ Until the last half of the 1900s, what
was the primary use for tropical
forests? homes for small populations of native peoples [other wrong options] [Discuss in forum] |
| Q7 ⇒ Which of the following is NOT one
of the major contributors to tropical
deforestation? the spread of tropical plant diseases [other wrong options] [Discuss in forum] |
| Q8 ⇒ Temperate forests are likely to have
which of the following species of
trees? all of the above [other wrong options] [Discuss in forum] |
| Q9 ⇒ Why is cattle ranching not
sustainable in areas that were
formerly tropical forests? Cattle ranching quickly exhausts the nutrient-poor soil of tropical rainforests. [other wrong options] [Discuss in forum] |
| Q10 ⇒ About what percentage of Earth's
people live in areas where water
shortages are common? 0.4 [other wrong options] [Discuss in forum] |
| Q11 ⇒ Which natural disaster causes more
deaths than any other? flooding [other wrong options] [Discuss in forum] |
| Q12 ⇒ What percentage of Earth's water is
fresh water? 0.03 [other wrong options] [Discuss in forum] |