Explanation

Kinetic energy is the energy an object possesses due to its motion.

The faster the object moves, the more kinetic energy it has.

Explanation

Mercury is the only elemental metal that remains in a liquid state at room temperature (around 25°C).

It is used in thermometers, barometers, and other scientific instruments due to this unique property.

Four other elements are liquids slightly warmer than room temperature.

They are:

1. Francium
2. Cesium
3. Gallium
4. Rubidium

Explanation

Explanation

Darwinism is a theory of biological evolution developed by the English naturalist Charles Darwin

Darwin's theory of evolution, also called Darwinism, can be further divided into 5 parts:

"evolution as such",

common descent,

gradualism,

population speciation,

and natural selection.

***

There are four principles at work in evolution—

variation,

inheritance,

selection

and time.

ND11-07-2023

Explanation

Pressure formula is expressed as P = F/A,

• where P is pressure,
• F is force,
• and A is the area by which the force is applied perpendicularly.

Its SI unit of pressure is Pascal (represented as Pa) 

Definition of Pressure:

 Pressure can be defined as the force acting per unit area.

Explanation

Distant objects can be seen with the help of the Telescope

They produce an image that is larger than the image that can be seen with the unaided eye.

Telescopes gather far more light than the eye,

It allows dim objects to be observed with greater magnification and better resolution.

Explanation

Muscle is a type of tissue that contracts to produce movement.

The three main types of muscle tissues are skeletal, smooth, and cardiac.

Explanation

Ascorbic acid, also known as vitamin C, is a water-soluble vitamin that is essential for various bodily functions, such as:

• Collagen production
• Wound healing
• Iron absorption
• Antioxidant functions

Vitamin C is one of the most well-known vitamins and is found in many fruits, vegetables, and other foods.

Explanation

The speed of light is much faster than the speed of sound in air.

Light travels 186 thousand miles in 1 second.

While sound takes almost 5 seconds to travel 1 mile.

Explanation

Singular noun: Leave 

Plural noun: Leaves 

Leave means پتہ