For example, someone's age might be an independent variable. Other factors (such as what they eat, how much they go to school, how much television they watch) aren't going to change a person's age.
It's known as the Cruelest Place on Earth the desert is known for its extreme heat and in-hospitability atmosphere. Rub al Khali: 650,000 km2: Saudi Arabia, United Arab Emirates, Oman and Yemen. The largest sand desert in the world. The desert is the most oil-rich site in the world. Syrian: 500,000 km2: Iraq, Jordan, Syria and Saudi Arabia. It's also known as the Syro-Arabian. The desert is very rocky and flat. An Nafud: 103,600 km2: Saudi Arabia: It's known as the great arc of reddish sand desert in central Saudi Arabia. Ad Dahna: 650,000 km2: Saudi Arabia
The Sahara desert is renowned for its majestic sand dunes. The whole desert is made of a deep yellow-brown sand. Each grain is fine and purely sand. There is the occasional water hole or oasis, some habitation, reptiles such as snakes and lizards.t is also the biggest hot desert in the world. However, it is the second biggest desert, as Antarctica is the biggest desert (but a cold desert). Some parts of the Sahara are sandy with giant dunes, while other areas are gravel plains, rock plateaus and mountains (only 3/8th of the Sahara Desert is sand).