The Sahara is huge, several times larger than the United Kingdom.
The contiguous United States is slightly larger than the Sahara but the Sahara is growing rapidly so may soon surpass that.
The Sahara is nearly as big as the 48 states.
The Sahara Desert is almost as big as the continuous forty-eight states of the United States.
There is no 'state' in Africa that is nearly as big as the United States. The Sahara is nearly as big as the contiguous United States but the Sahara is a desert and not a state or country.
The Sahara
The Sahara Desert!
The Sahara Desert is nearly as big as the continental U.S.
the Sahara desert
The Sahara Desert
The Sahara is nearly as big as the contiguous 48 states.
The Sahara Desert is nearly as big as the United States.
The Sahara because it is the biggest desert in the world and the second largest is in the USA, so it is the Sahara.
The Sahara is the closest major desert to the UK.