Explanation

The fundamental units in the SI (International System of Units) are:

1. The meter (m) for length,
2. The kilogram (kg) for mass,
3. The second (s) for time,
4. The ampere (A) for electric current,
5. The kelvin (K) for thermodynamic temperature,
6. The mole (mol) for the amount of substance, 
7. The candela (cd) for luminous intensity.

These seven base units are independent and form the foundation of the SI system, from which all other units are derived. 

Explanation

Generally article the is used before a particular direction.

For example:

The east, the west, the north, the south

Explanation

The Sui gas field is the biggest natural gas field in Pakistan.

It is located near Sui in Balochistan.

The gas field was discovered in late 1952 and the commercial exploitation of the field began in 1955.

Explanation

Sir William Wallace was an independence fighter of Scotland,

Known for his role in the Scottish Wars of Independence against English rule.

He rose to prominence in the late 13th century, notably leading the Scots to victory at the Battle of Stirling Bridge in 1297.