Explanation

• A Kaleidoscope is an optical instrument that uses mirrors and glass fragments.
• It used to create multiple images of an object, creating a colorful and symmetrical pattern.

Explanation

• Photosynthesis occurs during daytime because it depends on sunlight, which provides the energy necessary for the process to occur.
• Sunlight is the source of light energy that is absorbed by pigments such as chlorophyll.
• Which is then used to power the conversion of carbon dioxide and water into glucose and oxygen.

Explanation

• During the daytime, plants require Carbon Dioxide (CO2) for photosynthesis.
• Which is the process by which they produce glucose and oxygen.

Explanation

This is the photosynthesis reaction, where carbon dioxide (CO2) and water (H2O) are converted into glucose (C6H12O6) and oxygen (O2) in the presence of light energy.

Explanation

• Opaque objects do not allow any light to travel through them, as they absorb or reflect all of the light.
• Examples: Metals, wood, stone, paper, books, table, wall, newspaper, brick wall, wooden objects, trees and thick clothing.

Explanation

• Fungi are multicellular organisms, consisting of many cells that work together to form complex structures like mushrooms and molds.
• They have modified cell wall and nucleus.
• They have not chlorophyll.
• Animals, including humans, are multicellular organisms made up of many cells that work together to form tissues, organs, and systems.
• They have modified nucleus but don't have cell wall.
• They have not chlorophyll.
• Bacteria are unicellular organisms.
• They have cell wall but don't have proper nucleus.
• It doesn't contain chlorophyll.
• It is used to make medicines, yogurt and cheese.

Explanation

Force can change an object's:

• Direction (by changing its trajectory)
• Size (by compressing or expanding it)
• Speed (by accelerating or decelerating it)

But force cannot change an object's mass.

Mass is a fundamental property of an object that remains constant, regardless of the forces acting upon it.

Explanation

In the absence of sunlight, the entire food chain would become inactive and collapse because:

• Plants and algae, the primary producers, cannot undergo photosynthesis and produce energy.
• Herbivores cannot feed on plants, and carnivores cannot feed on herbivores.
• The energy flow from producers to consumers would be disrupted, leading to a collapse of the food chain.

Explanation

• Animals in grassland environments have broad feet or hooves that help them escape quickly from predators, such as lions, cheetahs, and hyenas.
• The broad feet provide stability and support for rapid movement, allowing them to run fast and efficiently.

Explanation

• Iron Rock is a non-living component, an abiotic factor.
• It is not included in the living components of the land environment.