Last updated on March 14th, 2025 at 10:30 pm
Class 5 EVS Chapter 1 Super Senses
Que: How do ants find their way to food?
Ans: Ants leave a scent on the ground while walking, which other ants follow to find their way.
Que: How do mosquitoes detect humans?
Ans: Mosquitoes find humans by their body odor, the smell of the soles of the feet, and body heat.
Que: What helps dogs to mark their territory?
Ans: Dogs mark their territory using the smell of their urine and can detect if another dog has come into their territory.
Que: Why do birds often move their necks?
Ans: Birds have fixed eyes and cannot move them, so they have to turn their heads to look around.
Que: How far can eagles see compared to humans?
Ans: Eagles can see four times farther than humans – what we can see from 2 metres, they can see from 8 metres.
Que: Can animals see colours like humans?
Ans: No, animals cannot see colours as much as humans. During the day animals can see a few colours, while at night animals can see in black and white.
Que: How do snakes hear sounds?
Ans: Snakes do not have external ears; they feel vibrations on the ground to detect sounds.
Que: How many hours does a sloth sleep per day?
Ans: A sloth sleeps for about 17 hours per day.
Que: How far can a tiger’s roar be heard?
Ans: A tiger’s roar can be heard up to 3 kilometres away.
Que: What are tiger whiskers used for?
Ans: Tiger whiskers are sensitive and help them sense movement or vibrations in the air and find prey in the dark.
Que: How do dolphins communicate?
Ans: Dolphins make different sounds to send messages to each other.
Que: What warning system do fish use?
Ans: Fish make alarm calls using electrical signals.
Que: How long does a sloth live?
Ans: Sloths live for about 40 years.
Que: What helps langurs warn others about danger?
Ans: Langurs give special warning calls to alert others about dangers such as tigers or leopards.
Que: How do silkworms find their mate?
Ans: Male silkworms can locate female silkworms from several kilometres away by their scent.
Que: What are people who kill animals for their organs called?
Ans: People who kill animals for their organs are called poachers and poachers.
Que: How many trees does a sloth visit in its lifetime?
Ans: A sloth visits only around eight trees in its lifetime.
Que: How do tigers mark their territory?
Ans: Tigers mark their territory with their urine.
Que: What helped some tribes survive the 2004 tsunami?
Ans: They observed unusual animal behaviour and moved to safer areas before the tsunami struck.
Que: How do birds warn about danger?
Ans: Birds give different alarm calls for different types of danger, such as danger coming from the sky or the ground.
