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Worksheets7th class 12 lesson
Total questions: 20
Worksheet time: 10mins
Cutting Trees on a large scale is known as deforestation.
True
False
These forests remain green throughout the year.
Evergreen
Deciduous
Thorn
Nutrients are replenished in soil through
roots
water
humus
all of these
Canopy is formed by
small trees
herbs
big trees
shrubs
Rains may also damage the
roots
soil
humus
none of these
Forests protect the soil from
humus
erosion
growth
conservation
The plants also maintain the balance of oxygen and carbon-dioxide in the atmosphere, so the forest are called
kidney
heart
lungs
nose
Cutting and destroying of forest is called
afforestation
degradation
deforestation
decomposition
A forest is a purifier of
water
air
both water and air
none of these
The insects like butterflies help flowering plants in
deforestation
pollination
giving fragrance
growth
Micro-organisms act on dead plants to obtained
fungus
mushroom
humus
fertilizer
The rainfall will be less in the absence of
cities
forest
villages
animals
Which one of the following is odd one out?
teak
sal
porcupine
kachnar
Which of the following is not prepared from the wood obtained from forest?
plywood
paper
thermocol
matchsticks
Which of the following has the strongest stem?
tree
herb
shrub
climber
Which among the following is the smallest forest animal?
bison
fox
boar
porcupine
Ryan visited a forest with his class mates and teacher. His teacher told the students not to make noise as it will disturb
birds
plants
animals
animals and birds
which of the following serve as green lungs?
green pigment of plants
forests
kitchen garden
green house gases
Which one of the following is a role of forests?
Prevent soil erosion
Provide food, shelter, water and medicines
Prevent flood
All of the above
Which one of the following is an animal product?
Gum
Honey
Catechu
Rubber
