CBSE Class 5 EVS Water The Essence of Life MCQs Set 02

Answer: (B) Hollow stems

Explanation:
1. The stems of a water lily have empty spaces inside.
2. These empty spaces are filled with air.
3. The air makes the plant light so it stays on top of the water.

Answer: (A) River

Explanation:
1. Rivers have sweet water that is safe to drink after cleaning.
2. Oceans and seas have salty water that we cannot drink.
3. So a river is a good place to get freshwater.

Answer: (B) Cemented surfaces block it

Explanation:
1. Cities have roads and footpaths made of hard cement.
2. Cement does not have holes for water to pass.
3. Because of this, rainwater cannot go down into the soil.

Answer: (C) Sunlight

Explanation:
1. The sun shines bright and gives heat to water.
2. When water gets warm, it turns into steam or vapour.
3. This warm vapour rises up into the air.

Answer: (D) Ice

Explanation:
1. Water can be solid, liquid, or gas.
2. Ice is the solid, hard form of water.
3. Smoke, soil, and paper are completely different things.

Answer: (B) Dropping water on wax-colored paper

Explanation:
1. Wax crayons make a smooth, oily layer on paper.
2. When drops of water fall on it, they roll off like tiny balls.
3. The paper does not get wet because wax keeps water away.

Answer: (B) Soft shell and webbed feet

Explanation:
1. Webbed feet act like paddles to push water while swimming.
2. A shell protects the turtle's body from danger.
3. These parts help turtles live safely in water.

Answer: (B) Water cycle

Explanation:
1. Water goes up into the sky as gas.
2. It cools down to make clouds and falls as rain.
3. This never-ending cycle keeps repeating again and again.

Answer: (A) Gravity

Explanation:
1. Gravity is an invisible force that pulls everything downward.
2. Because of this pull, river water flows down hills and slopes.
3. Water always runs from high land toward lower ground.

Answer: (B) Water hyacinth

Explanation:
1. Water hyacinth is a free-floating plant with puffy leaves.
2. It multiplies very quickly on the surface of ponds.
3. Soon it can cover the whole water body like a green mat.

Answer: (C) Mountains

Explanation:
1. High mountains have ice, snow, and lots of rain.
2. When the ice melts, water runs down as small streams.
3. These small streams join together to start a big river.

Answer: (A) It is salty

Explanation:
1. Sea and ocean water contains lots of dissolved salt.
2. Drinking salty water is bad for our health and makes us sick.
3. We can only drink clean freshwater.

Answer: (B) Hydrilla

Explanation:
1. Hydrilla grows completely submerged under water.
2. It does not come up to float on the surface.
3. It adds fresh air into the water for fish to breathe.

Answer: (B) All living beings depend on it

Explanation:
1. Humans, animals, and plants need water to survive.
2. We need water to drink, cook food, and grow crops.
3. Life cannot continue without water.

Answer: (A) Condensation of water vapour

Explanation:
1. Warm vapour goes up and cools down.
2. Cooling turns the vapour into cloud droplets.
3. When these droplets become heavy, they fall down as rain.

Answer: (B) Fish

Explanation:
1. Fish have special body parts called fins.
2. They flap their fins to push through water.
3. Fins help fish swim and turn in different directions.

Answer: (C) It doesn't drain into any sea

Explanation:
1. Most rivers in India flow into an ocean or sea.
2. The Luni River flows through Rajasthan and ends in marshes.
3. It disappears into the land without meeting any sea.

Answer: (B) Steam

Explanation:
1. When water is heated very hot on a stove, it boils.
2. The hot liquid turns into gas.
3. We see this gas rising up as white steam.

Answer: (A) Pond heron

Explanation:
1. The pond heron has a sharp, pointed beak like a spear.
2. It waits quietly in shallow pond water.
3. It quickly strikes and grabs fish with its long beak.

Answer: (B) Feed into main rivers

Explanation:
1. Tributaries are smaller streams and rivers.
2. They carry water from different areas.
3. They pour their water into a bigger river to help it grow.

Answer: (A) Green lawn

Explanation:
1. A lawn has green grass and open, soft mud.
2. Mud lets rainwater seep deep inside.
3. This water refills the underground water level.

Answer: (B) They melt into water

Explanation:
1. A normal room is warmer than the freezer.
2. Heat from the room warms the cold ice.
3. The solid ice slowly changes into liquid water.

Answer: (B) Godavari

Explanation:
1. The Godavari is a large river in India.
2. It flows from west to east across the country.
3. At the end of its journey, it empties into the Bay of Bengal.

Answer: (A) Godavari

Explanation:
1. River Ganga is the longest river in India.
2. River Godavari comes second after the Ganga.
3. It travels more than one thousand kilometres across the land.

Answer: (B) To prevent too much water from entering

Explanation:
1. Lotus plants grow inside water.
2. Too much water soaking in can spoil their leaves.
3. The waxy surface keeps excess water out so the leaf stays healthy.

Answer: (A) Condensation of water vapour

Explanation:
1. Water vapour rises up into the sky where it is cool.
2. Cooling turns the vapour into millions of tiny water drops.
3. These floating drops gather together to make clouds.

Answer: (C) Tributaries

Explanation:
1. A big river collects water from many smaller paths.
2. These small rivers that flow into the main one are called tributaries.
3. They add more water and strength to the main river.

Answer: (B) Fish

Explanation:
1. Fish do not have lungs like us.
2. They have special openings on the side called gills.
3. Gills take fresh air directly from the water.

Answer: (B) Narmada

Explanation:
1. Most big rivers in India flow towards the east.
2. The Narmada is special because it flows towards the west.
3. It ends by emptying its water into the Arabian Sea.

Answer: (B) Water droplets

Explanation:
1. Steam is hot water in the air.
2. When hot steam touches a cold surface, it loses its heat.
3. It quickly changes back into little drops of liquid water.