Explanation

 The limiting reactant (or limiting reagent) is the reactant that controls the amount of product formed in a chemical reaction

Because it is the substance that is completely consumed first, thereby limiting the extent of the reaction. 

Explanation

Atto (a) = 10⁻¹⁸

Femto (f) = 10⁻¹⁵

Nano (n) = 10⁻⁹

Peta (P) = 10¹⁵

So, Atto has the smallest (lowest) value.

Explanation

Explanation

Power = Work / Time = (Force × Distance) / Time

= (Mass × Acceleration × Distance) / Time

= [M] × [LT-2] × [L] / [T] = [ML2T-3].

Explanation

Explanation

A cube has 6 equal square faces, and each face has area a².

So, surface area = 6a².

Explanation

Cascade جھرنا۔

Waterfall آبشار

Explanation

The Great Depression is widely considered to have begun with the stock market crash in the United States in October 1929.

This economic downturn is also known as the Depression of 1929 or the Slump of 1929. 

Explanation

Woeful افسوسناک

Grieved غمگین

Explanation

The Rydberg constant (R) is a physical constant used in atomic spectroscopy.

Its approximate value is 1.097×10^5 m-1