False. US territories in the Pacific do not include the 2 countries mentioned. The US established diplomatic ties with Vanuatu and Tonga. However, its territories in the Pacific include only Samoa, Guam, Puerto Rico, Northern Mariana Islands, and <span>United States Virgin Islands.</span>
Sand sheets and dunes cover approximately 25 percent of the Sahara's surface.
They do not occur only during spring they occur when the sun, moon, and earth are all alined.
