Explanation

The Milky Way is the galaxy that contains our solar system

It consists of 100–400 billion stars

The Milky Way is a huge collection of: 

• stars
• dust
• gas

It is visible as a hazy band of white light

Additional Information

The nearest galaxy to our Milky Way is Andromeda

Largest galaxy in the Universe is a Spiral galaxy 

Explanation

Herbivores: These animals eat only plants.

The word "herbivore" comes from the Latin words "herba" (meaning plant) and "vorare" (meaning to eat).

Detritivores: These animals eat decaying organic matter.

Omnivores: These animals eat both plants and animals. 

Carnivores: These animals eat only meat. 

Explanation

2H₂ + O₂ → 2H₂O

This balanced equation ensures 4 hydrogen atoms and 2 oxygen atoms on both sides.

It correctly represents the formation of water from hydrogen and oxygen gases.

Explanation

اپنے منہ میاں مٹھو بننا ایک ضرب المثل ہے جس کے معنی ہیں اپنی تعریف خود کرنا

Explanation

The sternum helps protect the internal thoracic viscera – such as :

• the heart
• lungs
• esophagus.

The sternum (or breastbone) is a flat bone located at the anterior aspect of the thorax.

It lies in the midline of the chest and has a 'T' shape.

As part of the bony thoracic wall,

Explanation

 Although the units for sound intensity are technically watts per meter squared, it is much more common for it to be referred to as decibels, dB.

A decibel is a ratio of the observed amplitude, or intensity level to a reference, which is 0 dB.

Explanation

The given compound is an ionic compound

It is made up of:

• one potassium
• one manganese,
• four oxygen atoms.

Oxidation numbers of potassium (K) and oxygen (O) are +1 and -2 respectively.

Let us assume that the oxidation number of Mn is $x$.

Since ionic compounds are neutral, the net charge on them is zero.

(Oxidation number of K) + (Oxidation number of Mn) + (4 $\times$ The oxidation number of O) = $0$

(1)$\times$(K) + (1)$\times$(Mn) + 4$\times$(O) = $0$

$(1)$$\times$(+1) + (1)$\times$($x$) + 4$\times$(-2) = $0$

$x$ = +7

Hence, the oxidation number of $\text{Mn}$ in ${\text{KMnO}}_4$ is +7.

Explanation

The light from an ordinary lamp is hotter than a tube light because of incandescence.

The process by which light is produced through heat.

In an incandescent light bulb, an electric current heats a thin metal filament until it glows and produces light.

Explanation

The sun is containing 99.86 % mass of the solar system

Explanation

The B vitamins, particularly B1 (thiamine), B2 (riboflavin), B3 (niacin), B6 (pyridoxine), and B12 (cobalamin),

It plays an essential role in energy metabolism and muscle function.

They help convert carbohydrates, fats, and proteins into energy

That the muscles can use during physical activity.