Test: Adaptations in Plants- 3 - Class 4 MCQ

Underwater plants release oxygen into the water during photosynthesis. This oxygen is important for fish and other aquatic animals to breathe and live, helping to keep the water healthy.

Underwater plants like Hydrilla have thin, narrow leaves that let water pass through them easily. This helps the plants stay in place and not get torn by water movement.

Plants that grow in water are called aquatic plants. They live in water environments like lakes, ponds, rivers, and oceans.

Floating plants like duckweed have spongy leaves filled with air spaces, which help them float on the water. This makes it easier for the plant to get sunlight and stay stable on the water surface.

• Plants in heavy-rainfall areas, like lychee, cashew, pineapple, sugar cane, cotton, rubber, and teak, have broad and abundant leaves that capture sunlight for photosynthesis.
• This process helps plants make their food using sunlight.
• So, the statement is False because these plants do capture sunlight through their leaves to make food.

• A deciduous tree is a type of tree that loses all its leaves at once in autumn.
• This helps the tree survive the cold winter by saving water.
• In spring, new leaves grow back.
• Examples of deciduous trees include cherry and maple.
• On the other hand, evergreen trees keep their leaves all year round and do not lose them in autumn.

Evergreen trees keep their leaves all year long. This helps them stay green and healthy, even when the weather changes.