Chapter 11 Nature’s Treasures Worksheet Solutions

Worksheet Solutions: Nature’s Treasures

Multiple Choice Questions

Q1: What percentage of air is composed of nitrogen?
(a) 21%
(b) 78%
(c) 1%
(d) 50%
Ans: (b) 78%

Q2: Which of the following is NOT a source of freshwater?
(a) Rivers
(b) Lakes
(c) Oceans
(d) Wells
Ans: (c) Oceans

Q3: What is the primary use of solar panels?
(a) To clean water
(b) To generate electricity
(c) To grow plants
(d) To store gas
Ans: (b) To generate electricity

Q4: Which type of resource is coal classified as?
(a) Renewable
(b) Non-renewable
(c) Infinite
(d) Sustainable
Ans: (b) Non-renewable

Q5: What is the main purpose of Van Mahotsav?
(a) To promote water conservation
(b) To increase green cover
(c) To celebrate wildlife
(d) To educate about soil
Ans: (b) To increase green cover

Fill in the Blanks

Q1: Water from oceans and seas is __________ and not suitable for drinking.
Ans: salty

Q2: Air is primarily composed of __________, which is essential for respiration.
Ans: oxygen

Q3: __________ is a week-long event celebrated to promote forest conservation.
Ans: Van Mahotsav

Q4: Solar energy can be harnessed using __________ panels.
Ans: solar

Q5: Fossil fuels are formed from the remains of __________ organisms.
Ans: ancient

True or False

Q1: Air is visible and can be seen directly.
Ans: False

Q2: Freshwater is easily accessible from oceans.
Ans: False

Q3: Forests are important for biodiversity and climate regulation.
Ans: True

Q4: Stepwells are a modern method used for water harvesting.
Ans: False

Q5: Renewable resources can be replenished naturally.
Ans: True

Match the Following

Ans: