Explanation

Plants are divided into two main groups:

1. Flowering Plants (Angiosperms): These plants produce flowers and fruits. Examples include: Roses, Sunflowers, Tomatoes, Wheat and Hibiscus etc.
2. Non-Flowering Plants (Gymnosperms): These plants do not produce flowers or fruits. Examples include: Ferns, Mosses, Pine trees and Cycads etc.

Explanation

• In maize (Zea mays), the first structure to emerge from the seed during germination is the radical root.
• It is also known as the primary root.
• This root grows downward into the soil, anchoring the seedling and absorbing water and nutrients.

Explanation

• An electric motor converts electrical energy into mechanical energy, producing motion or rotation.
• It uses electromagnetic forces to generate torque, which drives a shaft or other mechanical components.

Explanation

When light strikes an opaque object, the light is blocked, thus a Shadow is formed on the opposite side of the object.

Explanation

• Diffusion is the random movement of particles from a region of higher concentration to a region of lower concentration, resulting in uniform distribution.
• In this case, the ink particles spread out and mix with the water particles, causing the color to disperse throughout the glass.

Explanation

• Cholera is a waterborne disease caused by the bacterium Vibrio cholerae, which is typically found in contaminated water sources.
• If a child has cholera, it indicates that they have ingested contaminated water.
• It addressing water pollution is crucial to prevent further spread of the disease.

Water pollution can cause:

• Waterborne diseases (cholera, typhoid, diarrhea)
• Death of aquatic life (fishes, animals, plants)
• Health problems (immune depression, reproductive failure, acute poisoning)

Explanation

• Hypogeal germination occurs in monocotyledonous seeds (Monocot Seed).
• Where the cotyledon remains underground and the plumule emerges above the soil surface.
• Examples of monocot seeds include maize, wheat, rice, and grasses.

Explanation

• Plants are multicellular, composed of many cells that work together to form roots, stems, leaves, and other structures.
• They have modified cell wall and nucleus.
• They have chlorophyll.
• Algae are unicellular with proper cell wall and nucleus.
• It contain chlorophyll.
• It causes diseases: Cutleria, Ulva and Volvox.

Explanation

• Electromagnets can be easily turned on and off by controlling the electric current flowing through them.
• It making them useful in applications like cranes (where they can be used to lift and release heavy loads) and doorbells (where they can be used to strike a bell or activate a buzzer).
• This switchability is a key characteristic that makes electromagnets useful in many applications.

Explanation

• Condensation is the process by which water vapor (gas) changes to liquid water, releasing energy in the form of heat.
• This occurs when warm air, containing water vapor, comes into contact with a cool surface.
• It causing the water vapor to condense into droplets of water.