Question

SECTION A
Q1.FILL IN THE BLANKS
a)Animals that live both on land and in water is called
b)Animals that spend most of their time on trees are known as
c) Coconut and rubber grow on
d) always acts in a direction opposite to that of motion
e)A place where a plant lives is called
Q2.TICK THE CORRECT OPTION
1 Animals like horse, deer and cat are
a. Terrestrial animals
b. Aquatic animals
2.Fishes have which help them to move in water
a Paddle
b.Fins
3. Breathing roots is a special feature of
a aquatic plants
b. Mangroves
4. Which surface is more irregullar
a. smooth surface
b.rough surface
Q3.STATE TRUE OR FALSE
a). Terrestrial animals have streamlined body
b) Aquatic animals have lungs to respire
c) Cactus is used to make cloth
d). Friction can be reduced by polishing
Q4.UNCRAMBLE THE FOLLOWING
a). ERSGD b) SOLTU
C) OEVNM
SECTION B
Q5.ANSWER ONLY 2 QUESTIONS FROM THE FOLLOWING
a). What is adaption
b). What do you mean by arboreal animals?
c).Explain two ways to reduce friction​

Answer 1

Answer:

Q1.a)amphibians

b)Arboreal

d)Frictional force offers the resistance to the applied force opposing its motion. Thus, it always acts in the direction opposite to that of the object in motion.

e)The place where a plant or animal lives is called its habitat.

Q2.

1)a

2)b

3)b

Answer 2

Answer:

Q1.FILL IN THE BLANKS

a)Animals that live both on land and in water is called Amphibians .

b)Animals that spend most of their time on trees are known as Arboreal .

c) Coconut and rubber grow on dry areas .

d) Frictional force always acts in a direction opposite to that of motion .

e)A place where a plant lives is called habitat .

Q2.TICK THE CORRECT OPTION

1 Animals like horse, deer and cat are

a. Terrestrial animals. ✓

b. Aquatic animals

2.Fishes have which help them to move in water

a Paddle

b.Fins ✓

3. Breathing roots is a special feature of

a aquatic plants

b. Mangroves ✓

4. Which surface is more irregullar

a. smooth surface

b.rough surface ✓

Q3.STATE TRUE OR FALSE

a). Terrestrial animals have streamlined body ( False )

b) Aquatic animals have lungs to respire (False)

c) Cactus is used to make cloth (False)

d). Friction can be reduced by polishing (True)

Q4.UNCRAMBLE THE FOLLOWING

a). ERSGD : Dergs

b) SOLTU : Lotus

C) OEVNM : Venom

Q5.ANSWER ONLY 2 QUESTIONS FROM THE FOLLOWING

a). What is adaption

“Adaptation is the physical or behavioural characteristic of an organism that helps an organism to survive better in the surrounding environment.”

b). What do you mean by arboreal animals?

Arboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some animals may scale trees only occasionally, but others are exclusively arboreal. ... Some animals are exclusively arboreal in habitat, such as the tree snail.

c).Explain two ways to reduce friction

• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.
• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.Lubrication is another way to make a surface smoother.
• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.Lubrication is another way to make a surface smoother. Make the object more streamlined.
• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.Lubrication is another way to make a surface smoother. Make the object more streamlined. Reduce the forces acting on the surfaces.
• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.Lubrication is another way to make a surface smoother. Make the object more streamlined. Reduce the forces acting on the surfaces. Reduce the contact between the surfaces.

Explanation:

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