Free Our Environment 01 Practice Test - 5th Grade
Question 1
Movement of cooler air from the sea to the land happens during the night time.
True
False
SOLUTION
Solution : B
The cool air of sea moves toward warm land during daytime due to the pressure difference created between them.
Question 2
Which of the following rock samples contain fossils?
Pumice
Granite
Limestone
Mica
SOLUTION
Solution : C
Limestone is a sedimentary rock which contains fossils as it is made up of shells and skeletons of tiny sea creatures.
Question 3
Granite is a type of
lava stone
igneous rock
volcanic dust
sedimentary rock
SOLUTION
Solution : B
Igneous rocks are formed through the cooling of magma or lava. Rocks like granite and basalt are formed when magma cools above the surface of the earth.
Question 4
Carrying away of the particles of the top soil by natural forces like the wind and running water is called
Soil compaction
Soil erosion
Terrace farming
Soil decay
SOLUTION
Solution : B
The process by which wind or flowing water washes away the fertile top part of soil is known as soil erosion.
Question 5
In which of the following processes, oxygen is consumed?
Burning
Respiration
Photosynthesis
Digestion
SOLUTION
Solution : A and B
Oxygen is consumed in the process of burning. In the process of respiration, oxygen is absorbed and carbon dioxide is released. In the process of photosynthesis, carbon dioxide is absorbed and oxygen is released into atmosphere.
Question 6
The pie chart shows the composition of air.
What do X and Y represent respectively?
Carbon dioxide, Nitrogen
Nitrogen, Oxygen
Nitrogen, Carbon monoxide
Helium, Argon
SOLUTION
Solution : B
Air is a mixture of gases which contains:
- 78% of nitrogen
- 21% of oxygen
- 1% of other gases
In the given pie chart, 'X' represents nitrogen and 'Y' represents oxygen gas.
Question 7
Which part of the food chain eats only meat?
Herbivore
Carnivore
Producer
Decomposer
SOLUTION
Solution : B
Carnivores are predators. They hunt and eat other animals to survive.
Question 8
Deer is the first animal in a food chain, which eats plant. What type of consumer is it?
Primary
Secondary
Tertiary
Producer
SOLUTION
Solution : A
In any food chain, primary consumer is an organism that feeds on the primary producers(plants).
Question 9
The planets revolve around the ___________ in our Solar System.
meteor
SOLUTION
Solution : B
The Sun is a star around which all the planets revolve. The planets have a fixed path in which they revolve called orbits around the Sun.
Question 10
_______ is the imaginary line that passes through the centre of the Earth.
String
Axis
Golden Line
Equator
SOLUTION
Solution : D
Equator is the imaginary line that passes through the centre of the Earth, dividing it into northern and southern hemispheres.