Explanation

• Roots, stems, and leaves of plants can produce offspring through asexual reproduction.
• It involves the growth of new individuals from vegetative parts of the parent plant.

This can occur through:

• Roots: adventitious roots, root cuttings
• Stems: stem cuttings, runners
• Leaves: leaf cuttings, leaf propagation

Explanation

• Navigation satellites are used for identifying the location of objects on Earth.
• Example: GPS (Global Positioning System) for navigation.

Explanation

• A mirror with a reflecting surface that bulges outwards, like the back side of a spoon, is called a Convex Mirror.
• This type of mirror is used in applications such as security mirrors, rear-view mirrors, and surveillance mirrors, as it provides a wider field of view.

Explanation

• Filtration is a process used to separate insoluble solids from a mixture by passing the mixture through a filter.
• Which traps the solids and allows the liquid to pass through.

Explanation

• When you put a drop of ink into water, the molecules of ink are in random motion due to their kinetic energy.
• As they collide with the surrounding water molecules, they transfer their energy and momentum, causing the ink molecules to spread out and move throughout the glass.
• This process is known as diffusion.

Explanation

• Fruits are organic materials that are easily decomposed by decomposers such as bacteria, fungi, and other microorganisms.
• They are a natural part of the nutrient cycle and can break down quickly in the environment.

The examples of biodegradable materials such as:

• Organic waste (kitchen waste, human waste, food waste, manure)
• Plant material (tree leaves, grass, wood, paper, cotton)
• Animal products (leather, feathers, dead animals)
• Food and food waste (fruits, vegetables, leftover food)
• Dead organic matter (dead plants, dead organisms)

Explanation

• The optimal temperature range for seed germination varies among plant species, but most seeds germinate best between 16°C to 24°C (61°F to 75°F).
• This temperature range allows for optimal metabolic activity, water uptake, and enzyme activation, facilitating seedling emergence and growth.

Explanation

• E. coli (Escherichia coli) is a type of bacterium.
• Specifically a gram-negative, rod-shaped bacterium that is commonly found in the gut of humans and other animals.

Explanation

• Cold-blooded vertebrates are animals that take on the temperature of their surroundings.
• They are also known as ectothermic vertebrates.
• Their body temperature is regulated by the environment around them, and they often bask in the sun or seek shade to control their body temperature.
• Examples: fish, amphibians, and reptiles.

Explanation

• Iron is a ferromagnetic material, which means it is strongly attracted to magnets.
• Therefore, an iron kettle will be attracted to a magnet.