Yes, hackers can potentially access external data storage devices if they are able to gain unauthorized access to the device or the network it is connected to. This could be done through various means such as exploiting security vulnerabilities, using malware, or conducting phishing attacks to trick users into providing access. It is important for individuals and organizations to implement strong security measures such as encryption, access controls, and regular security updates to protect their external data storage devices from unauthorized access. **

Altitude difference refers to the vertical distance between two points, typically measured from sea level. It is the difference in elevation between the highest and lowest points in a given area. Altitude difference is an important factor in determining the topography and terrain of a region, and it can have significant effects on weather patterns, ecosystems, and human activities such as agriculture and transportation. **

The legality of a flight altitude depends on various factors such as air traffic control regulations, airspace restrictions, and the specific flight plan. Pilots must adhere to the altitude restrictions set by air traffic control and comply with any airspace regulations in the area they are flying. Additionally, the aircraft's performance capabilities and the weather conditions also play a role in determining the legal flight altitude. Therefore, without specific details about the flight and the regulations in place, it is not possible to determine the legality of the flight altitude. **

The moon's altitude refers to its angular distance above the horizon. The moon's altitude changes throughout the night as it moves across the sky. At its highest point, the moon's altitude can reach around 90 degrees, which means it is directly overhead. The moon's altitude is an important factor for astronomers and navigators when determining its position in the sky. **

A Trojan can access external storage devices by disguising itself as a legitimate file or program that the user unknowingly downloads onto their computer. Once the Trojan is executed, it can then scan for and access any connected external storage devices, such as USB drives or external hard drives. The Trojan can then copy, modify, or delete files on these devices without the user's knowledge or consent. It is important for users to be cautious when downloading files from unknown sources and to regularly scan their devices for malware to prevent Trojans from accessing external storage devices. **

Self-illuminating devices are objects or materials that produce their own light without needing an external light source. Examples of self-illuminating devices include glow-in-the-dark materials and certain types of chemical reactions that produce light. On the other hand, external illuminating devices are objects or materials that require an external light source to be visible. Examples of external illuminating devices include reflective materials, such as road signs and safety vests, which rely on light from headlights or other sources to be visible. **

The altitude at which a person can survive varies depending on factors such as acclimatization, physical condition, and individual tolerance. Generally, the human body can adapt to higher altitudes over time, but the threshold for survival without supplemental oxygen is typically around 18,000 feet (5,500 meters). Above this altitude, the air becomes too thin to provide sufficient oxygen for the body to function properly, leading to altitude sickness and potentially life-threatening conditions. However, with proper acclimatization and gradual ascent, some individuals can survive at even higher altitudes. **

Clouds float at various altitudes depending on their type. For example, cirrus clouds can be found at high altitudes of 20,000 feet or more, while cumulus clouds typically form at lower altitudes around 6,500 feet. Altostratus clouds are found at mid-level altitudes around 6,500 to 20,000 feet. Overall, clouds can be found floating at different altitudes in the Earth's atmosphere, ranging from low to high levels. **