Here are the topic-wise multiple-choice questions (MCQs) from the given topics: Looking with One or Both Eyes, Do Animals See Colours?, Sounds Send Messages.
Looking with One or Both Eyes
1. Birds move their neck frequently because:
a) They like to stretch their necks
b) Their eyes are fixed and cannot move
c) They are looking for food
d) They are trying to communicate
2. Why do most birds have their eyes on the sides of their heads?
a) To increase their range of vision
b) To make them look bigger
c) To see things closer to them
d) To avoid direct sunlight
3. Which of the following birds has eyes in front of its head, like humans?
a) Owl
b) Parrot
c) Pigeon
d) Crow
4. What happens when you close one eye and try to catch a ball?
a) It becomes easier
b) It makes no difference
c) It becomes more difficult
d) The ball disappears
5. Why can eagles and vultures see things from very far away?
a) They have extra-large pupils
b) They have four times better vision than humans
c) They have night vision
d) They use both ears and eyes together
Do Animals See Colours?
6. Animals that are active at night can see:
a) Only in black and white
b) All colours like humans
c) Only red and yellow shades
d) Only blue and green colours
7. Animals that are active during the day can see:
a) Only black and white
b) Some colours
c) All colours like humans
d) Only shades of brown
8. How does a butterfly see the world differently from humans?
a) It can only see black and white
b) It can see ultraviolet light
c) It has poor vision and relies on smell
d) It can only see red and yellow
9. If an animal’s eyes are positioned on the sides of its head, what is its likely advantage?
a) It can see in the dark better
b) It can detect predators easily
c) It can focus on a single object better
d) It can recognize colours better
10. Which of the following statements is true?
a) All animals see the same colours as humans
b) No animals can see colours
c) Some animals can see a few colours, while others see only in black and white
d) Animals can see colours better than humans
Sounds Send Messages
11. How do langurs warn others about danger?
a) By running away
b) By making a special warning call
c) By attacking the predator
d) By hiding in trees
12. What is a common way that birds communicate danger?
a) By changing their colours
b) By giving specific alarm calls
c) By flying in circles
d) By making nests in a different place
13. How do fish send alarm signals?
a) By making loud sounds
b) By changing their body colour
c) By using electric signals
d) By jumping out of water
14. How do snakes hear sounds?
a) They use their external ears
b) They detect vibrations on the ground
c) They rely on their tongues
d) They use their tails to sense sound
15. Why do some animals behave strangely before an earthquake?
a) They can sense changes in air pressure
b) They can feel the vibrations before humans
c) They can hear the ground cracking
d) They get confused by the weather
Answers & Explanations
Looking with One or Both Eyes
1. b) Birds’ eyes are fixed, so they move their neck to see in different directions.
2. a) This positioning allows birds to have a wider range of vision to detect predators.
3. a) Owls have eyes in the front, which helps them focus on prey.
4. c) Depth perception is reduced when one eye is closed, making catching a ball harder.
5. b) Eagles and vultures have much sharper vision than humans, allowing them to see objects from a distance.
Do Animals See Colours?
6. a) Nocturnal animals usually see only in black and white.
7. b) Diurnal animals can see some colours but not as vividly as humans.
8. b) Butterflies can detect ultraviolet light, which humans cannot see.
9. b) Having eyes on the sides of the head gives a wider field of vision, helping detect predators.
10. c) Different animals have different vision abilities; some see colours, while others see in black and white.
Sounds Send Messages
11. b) Langurs give special warning calls when they sense danger.
12. b) Birds make different alarm calls for different dangers.
13. c) Some fish produce electric signals to warn others.
14. b) Snakes do not have external ears but can sense vibrations.
15. b) Many animals detect earthquake vibrations before humans do.
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