Western Sahara is a disputed territory in North Africa, claimed by both Morocco and the Polisario Front. While Morocco controls most of the territory, Western Sahara is not internationally recognized as part of Morocco. The United Nations considers Western Sahara a non-self-governing territory, and there have been ongoing efforts to find a peaceful resolution to the conflict through a referendum on self-determination. **

Yes, it is difficult to cross the Sahara due to its harsh and unforgiving environment. The extreme heat, vast sand dunes, and limited water sources make it a challenging and dangerous journey. Navigating the desert also requires careful planning and preparation to ensure a safe passage. Additionally, the presence of armed groups and criminal activity in certain areas adds to the difficulty of crossing the Sahara. **

The black sand of the Sahara is a type of sand that is dark in color due to its high concentration of volcanic minerals and heavy metals. It is found in various parts of the Sahara desert, particularly in regions where volcanic activity has occurred in the past. The black sand is often composed of minerals such as magnetite, ilmenite, and hematite, giving it its distinct dark color. This type of sand is not as common as the typical golden sand found in deserts, making it a unique and visually striking feature of the Sahara landscape. **

It is difficult to determine the exact amount of sand in the Sahara desert due to its vast size and constantly shifting dunes. However, it is estimated that the Sahara contains billions of tons of sand, covering an area of approximately 9.2 million square kilometers. The sand dunes in the Sahara can reach heights of over 180 meters, and the desert is known for its iconic landscapes of endless sand dunes. **

The Sahara Desert is the largest hot desert in the world, covering an area of approximately 3.6 million square miles. It is characterized by its extreme aridity, with very little rainfall occurring throughout the year. The landscape of the Sahara is dominated by sand dunes, rocky plateaus, and sparse vegetation adapted to the harsh conditions. Temperatures in the Sahara can vary greatly, with scorching heat during the day and cold nights. **

The Sahara is so dry because it is located in the subtropical high-pressure belt known as the subtropical ridge. This high-pressure system causes air to sink and warm up, inhibiting the formation of clouds and precipitation. Additionally, the Sahara is far from large bodies of water, which limits the availability of moisture for precipitation. These factors combined result in the extreme aridity of the Sahara desert. **

Online payments can be secure if proper security measures are in place. This includes using secure websites with encryption, using trusted payment processors, and being cautious with sharing personal and financial information. It's important to look for the "https" in the website URL and a lock symbol in the address bar to ensure the website is secure. Additionally, using strong and unique passwords for online accounts can also help enhance security. **

The time it takes to cross the Sahara Desert can vary depending on the route taken, mode of transportation, and specific starting and ending points. Traveling by car or camel, it can take anywhere from a few days to a few weeks to cross the Sahara. Some organized tours offer expeditions that can take around 10-14 days to cross the desert, while others may opt for a more direct route that could be completed in a shorter time frame. **