Explanation

• Weight is a force.
• The unit of measurement for force is the Newton (N).

Explanation

Oceans absorb about 25-30% of anthropogenic CO₂ emissions, making them the largest natural carbon sink on Earth.

CO₂ dissolves in seawater and undergoes chemical reactions, forming carbonic acid, which affects ocean pH and marine ecosystems (ocean acidification).

Explanation

A solar eclipse can only take place during the phase of the new moon

when the moon passes directly between the sun and Earth and its shadows fall upon Earth's surface.

Explanation

The value of liquid gallon is defined as 231 cubic inches and equates to approximately 3.785 litres.

1 litres = 0.22 gallons = 1000 cm3.

One imperial gallon is equivalent to approximately 1.2 U.S. liquid gallons.

1 imperial gallon = 4.546 litres

Explanation

Silicon is a metalloid with properties ideal for controlling electrical current.

It's the most widely used material in semiconductor devices like transistors and chips.

Explanation

The gas with the highest potential for global warming (Global Warming Potential or GWP) among commonly recognized greenhouse gases is Sulfur Hexafluoride (SF₆).

Sulfur Hexafluoride (SF₆) is a synthetic gas primarily used in electrical equipment as an insulator.

Explanation

Explanation

• Reflection is the process by which light rays bounce back from a surface, without being absorbed or transmitted.
• This occurs when light hits a material object, such as a mirror, metal, or water.

Explanation

Planets and Natural Satellites:

• Mercury: 0
• Venus: 0
• Earth: 1 (Moon)
• Mars: 2 (Deimos, Phobos)
• Jupiter: 95
• Saturn: 274
• Uranus: 27

Explanation

esistance R of a conductor is given by:

R = ρ (L / A)  

Where:  

- ρ = resistivity  

- L = length  

- A = cross-sectional area

If length (L) is made 4 times, and area and material stay the same, then:

R becomes 4 × original resistance