Free Animal Life 02 Practice Test - 4th Grade
Question 1
Grass → Grasshopper → Frog → Snake
From the given food chain, which organism's population is likely to decrease if the number of snakes increase?SOLUTION
Solution : D
The following would happen in case the population of snake increases.
∙ The population of frogs would decrease.
∙ The population of grasshopper would increase as there are no frogs to feed on them.
∙ The population of grass would decrease as there will be more grasshoppers.
Question 2
Which among the following animal is a scavenger?
SOLUTION
Solution : B
Scavengers are those animals that feed on dead animals. Vultures feed on dead animals and so are scavengers.
Question 3
Which animal is used to transport goods from one place to another?
SOLUTION
Solution : C
Donkeys are used to carry loads and goods from one place to another. These types of animals are also called 'pack animals'.
Humans ride on some pack animals to go from one place to another.
Question 4
Birds have feathers and ____ which enables them to fly.
strong bones
weak bones
hollow bones
coloured bones
SOLUTION
Solution : C
Hollow bones are light in weight. This reduces the weight of the birds. So, hollow bones along with feathers enable them to fly.
Question 5
Sun → Plants → Mice → Snakes → Hawks
From the given food chain, which of the following best describes the hawk?
Predator
Prey
Make their own food
Parasites
SOLUTION
Solution : A
According to the food chain, hawks feed on snakes while they aren't being hunted on by any other animal. Hawks are at the top position in the food chain. Therefore they are predators.
Question 6
The animal given in the image below gives us ___ to keep us warm in winters.
SOLUTION
Solution : C
The animal shown in the image is a sheep. It gives us wool which is used to make woollen clothes. These clothes keep us warm during winters.
Question 7
___ were used to carry messages from one place to another in ancient times.
SOLUTION
Solution : B
Pigeons had homing abilities which allowed them to travel back to their original home. Messages were tied to the legs of a pigeon.
Question 8
Select the animals which have ears.
SOLUTION
Solution : A, B, and D
Ears are the hearing aids of animals. Panda, giraffe and birds have ears. While snakes do not have ears, they rely on their body to detect sounds.
Question 9
The Project Tiger was first launched in which national park?
SOLUTION
Solution : C
In 1973, the Project Tiger was launched in the Corbett National Park of Uttarakhand. It was launched under the initiative of the Indian Government to save the depleting number of Bengal tigers.
Question 10
Polar bears have ____ all over their body.
SOLUTION
Solution : A
Polar bears have a thick layer of hair called fur all over their body. Fur helps them in maintaining their body temperature.