A heavy stone appears to be lighter in water. This is due to

• Upward pressure of water
• Downward pressure of water
• Lateral pressure of water
• None of these
Correct Option: A  [ Upward pressure of water ]

Remark: Water creates upward pressure due to the principle of buoyancy, as described by Archimedes' principle.

The location of where an organism lives would be best described as its:

• niche
• habitat
• range
• biome
Correct Option: B  [ habitat ]

Remark:

To an astronaut in space, the sky appears to be:

• Red
• White
• Dark
• Blue
Correct Option: C  [ Dark ]

Remark:

Which one is the hardest form of carbon ?

• Coke
• Graphite
• Diamond
• Charcoal
Correct Option: C  [ Diamond ]

Remark:

Every computer connected to the internet is identified by a unique four-part strings known as:

• IP Address
• Domain name
• Host Address
• None of these
Correct Option: A  [ IP Address ]

Remark:

Full form of "GPS" is

• Geographic Pointing System
• Global Positioning System
• Geographic Photo Sensor
• Global Polar Synchronization
Correct Option: B  [ Global Positioning System ]

Remark:

The addition of gypsum to Portland cement helps in:

• increasing the strength of cement
• rapid setting of cement
• preventing rapid setting of cement
• reducing in the cost of cement
Correct Option: C  [ preventing rapid setting of cement ]

Remark:

Which microorganism is responsible for Dengue fever?

• Fungi
• Viruses
• Bacteria
• Protozoa
Correct Option: B  [ Viruses ]

Remark: transmitted by mosquitoes 'Aedes aegypti'.

What is the scientific name of vitamin A

• Retinol
• Riboflavin
• Ascorbic acid
• Calciferol
Correct Option: A  [ Retinol ]

Remark: Vitamin A is a fat-soluble vitamin that is essential for various biological processes, including vision, immune system function, and skin health.

The sky looks blue due to

• Dispersion of Sunlight
• Scattering of Sunlight
• Refraction of Sunlight
• None of these
Correct Option: B  [ Scattering of Sunlight ]

Remark: The scattering of sunlight is a phenomenon that occurs when sunlight interacts with particles or molecules in the Earth's atmosphere, causing the light to change direction and spread out in various directions.