Explanation

Explanation

Grass carp require running water for breeding.

This environment is crucial for the successful spawning and development of their eggs.

As it helps maintain oxygen levels and water quality.

Explanation

Colour of the plants is green due to the presence of Chlorophyll۔

Chlorophyll absorbs certain wavelengths of light within the visible light spectrum.

Chlorophyll is the green color pigment which absorbs wavelength from sunlight.

Since the synthesis of food occurs in the presence of sunlight, it is called photosynthesis. 

Explanation

• 70 mg/dL: This is a low blood sugar level, indicating hypoglycemia. 
• 120 mg/dL: This is within the normal to pre-diabetic range, depending on other factors. 
• 100 mg/dL: This is a normal blood sugar level and does not indicate diabetes

Explanation

A passive smoker inhales smoke from others' cigarettes.

It often in enclosed spaces.

It can lead to similar health risks as active smoking.

Explanation

Vaccines are made from:

• Weakened or killed bacteria or viruses
• Small pieces of bacteria or viruses, like proteins or sugars
• Genetic material (DNA or RNA) from bacteria or viruses

These components stimulate an immune response, helping the body build immunity against specific diseases.

Explanation

• JPEG (Joint Photographic Experts Group) is a file format used for images, not text documents.
• It's commonly used for photos and graphics.

The file extensions suitable for MS Word files:

• .doc: An older file format used by MS Word (up to version 2003).
• .rtf: Rich Text Format, a file format that can be opened by MS Word and other word processing software.
• .docx: The current file format used by MS Word (version 2007 and later).

Explanation

When an object is placed between the focus and centre of curvature, the concave mirror can form an image larger than the actual object.

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Concave Mirror used for:

1. Shaving mirrors.
2. Head mirrors.
3. Ophthalmoscope.
4. Astronomical telescopes.
5. Headlights.
6. Solar furnaces.

Explanation

In liquids, particles are quite close together and move with random motion throughout the container.

Particles move rapidly in all directions but collide with each other more frequently than gases due to shorter distances between particles.

With an increase in temperature, the particles move faster as they gain kinetic energy, resulting in increased collision rates and an increased rate of diffusion.

ND2-03-2023

Explanation

• Viruses are considered non-cellular or acellular organisms because they do not have cellular structure or metabolism.
• They are composed of genetic material (DNA or RNA) surrounded by a protein coat and require a host cell to replicate and produce new viruses.