Very easy gravity is strong from the universe.
Answer:
b. grains traveling short distances (approximately 1 m) in the air
Explanation:
Wind is a very efficient erosion agent, and its action, particularly in areas of arid, semi-arid and desert climates, is responsible for transporting and depositing large volumes of sediments with the development of a typical wind landscape.
The diameter of the sand grains transported by the wind averages between 0.15 and 0.30 mm, with some fine grains up to 0.006 mm, all particles smaller than 0.006 mm are classified as dust. A grain the size of the dust is carried high in the air and a grain the size of the sand is carried forward near the ground by jumping (see figure 1). As the particle size increases, the attraction of gravity and air resistance also increase.
The soil surface particles are transported by the wind in three ways:
- By drag: the thickest particles (500 - 2000 microns).
- By saltation: medium particles (100-500 microns).
- In suspension: the smallest and lightest particles (<100 microns, 0.2 mm).
The <u>saltation</u> moves the particles by small jumps, in the direction of origin of the wind and normally does not remove them more than 1 centimeter above the ground. An individual grain rolls forward driven by the wind, until it bounces with a second grain. Once in the air, it is carried forward by the wind and drawn to the ground by gravity. It follows a parabolic path falling on the ground with an angle between 10º and 16º, and usually traveling short distances.
<span>This project will develop the "Sustainable Project Dashboard", an interactive software application for data collection, analysis and visualization that shows measures of social, economic and environmental performance for sustainability projects. This dashboard would be used as a tool for managing a project, for learning about complex systems and sustainability, and for education and outreach.
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The continental crust is located on the Earth's surface. Most continental crust is dry land above sea level. Some of it is beneath the pacific ocean.
