HOTs for Science Olympiad -1 - Class 4 MCQ

The frog is an amphibian. It can live on land and in water. On land, it hops and in water, it swims.

Cotton seeds utilize air as a means of dispersal due to their lightweight, feathery fibers that catch the wind currents, facilitating their spread to new areas for germination and growth.

Plants need sunlight for photosynthesis, a process vital for their growth. If Sarah's plant is not receiving adequate sunlight, it may struggle to grow well.

Placing a scarecrow in the garden can help deter birds from eating the seeds. Scarecrows mimic a human presence and can scare away birds effectively.

Roots do not make food for the plant; they primarily absorb water and minerals from the soil, anchor the plant, and sometimes store food produced by the leaves through photosynthesis.

Adequate moisture content is crucial for seed germination. It softens the seed coat and activates enzymes necessary for the germination process.

A leaf insect and polar bear merge with their surroundings to contuse their enemies.

Deer and zebras move in groups.

The correct answer is: d) Owls have feathers and beaks, bats do not.

• Owls: They are birds, so they have feathers, beaks, and no mammalian features like fur.
• Bats: They are mammals, so they have fur, no feathers, and do not possess a beak.