1. In what ways do human beings make use of this special sense of smell of dogs?
Ans: This special sense of smell of dogs is used by humans in the following ways:
a) For catching criminals
b) For detecting undesirable things or bombs
2. When do you find your sense of smell helpful to you? List some examples. Like— to know by its smell that food has gone bad or that something is burning.
Ans: Our sense of smell can be helpful to avoid accidents in case of gas leak, burning wires etc.
3. Write the name of a bird which has eyes in front of its head (like in humans).
Ans: An owl has eyes in front of its head (like in humans).
4. Write the names of some birds which have eyes on either side of the head. What is the size of their eyes as compared to the size of their head?
Ans: Birds like sparrow, crow, pigeon, eagle, etc. have eyes on either side of the head. The size of their eyes is much smaller than that of their head.
5. The names of ten animals whose ears can be seen.
Ans: Ten animals whose ears can be seen are: dog, cat, elephant, cow, buffalo, rabbit, lion, tiger, horse and monkey.
6. The names of some animals whose ears are bigger than our ears.
Ans: Animals whose ears are bigger than our ears are: elephant, dog, horse, buffalo, cow, etc.
7. Can we understand the sounds of some animals? Which animals?
Ans: Yes, we can understand the sound of some animals like dog and cat.
8. Do some animals understand our language? Which ones?
Ans: Yes, some pet animals like dog, cat and parrot can understand our language.
9. The tiger is one of the most alert animals. And yet, today tigers are in danger. What do you think are some of the dangers to tigers in the jungle?
Ans: Poaching and illegal hunting are the biggest threats for tigers which can even cause the extinction of this animal. Besides this deforestation is causing tigers to lose their natural home and making their survival tough.
10. Can human beings also be a threat to animals? How?
Ans: Yes, human beings can also be a threat to animals. Human beings kill animals for hide and other body parts. Also forests are being destroyed to develop industries and build homes due to which the natural habitat of animals is reduced.
11. Have you noticed that sometimes singers put their hand on their ear when they sing? Why do you think they may be doing this?
Ans: Yes, I have noticed that singers sometimes put their hand on their ear while singing. They do this to listen to their own voice and have control on it.
12. Give examples of animals that may have a very strong sense of sight, hearing or smell.
Ans:
Animals with a strong sense of sight: Eagle, Vulture, Hawk
Animals with a strong sense of hearing: Elephant, Monkeys, Tiger
Animals having a strong sense of smell: Dogs, Tigers, Lions
reference: jagranjosh.com