The first one is correct and the second one is B
They affect it by off roading with trucks and more and that messes up the desert floor for animals to camoflauge like snakes.
Answer:
Fertilizer: The ash from the volcanoes can act as extra nutrients for plants. The chemicals in the ash can make the soil richer which is beneficial for many plants.
Tourism: Volcanoes can attract people from all over the world. This can cause people to pay in order to visit. This can be beneficial to people who like in the area, since they can make money off of the tourist
Research: Volcanoes can allow humans to better understand the earth. They can also learn the patterns of the volcano's eruptions or the seismic activity leading up to the eruption.
Entertainment: Volcanoes can be used as entertainment. For example, people go on hikes or study the environment. This can lead to discoveries also.
A common crescent-shaped dune with horns pointed downwind is called a barchan dune.
A barchan or barkhan dune is a crescent-shaped dune. Barchan ("BAR-kahn") dunes form in areas with only one wind direction, and little or no vegetation. If conditions were "perfect"—the landscape was flat, winds blew from only one direction, vegetation could not grow, and sand was available but limited —barchan dunes would dominate a sandscape. One of the commonest types of dunes, it occurs in sandy deserts all over the world. Barchans are mostly formed by the wind from one direction and appear convex. They are arc-shaped, significantly asymmetrical in cross-section, with a gradual slope towards the wind sand ridge, and made out of well-sorted sand.
To learn more about barchan dune here
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Answer:
Velocity
Explanation:
The weather station is usually defined as a device that is used in order to determine the weather condition of a particular area by collecting meteorological information and data.
It is comprised of various measuring devices such as thermometer, barometer, which helps in measuring the atmospheric temperature and pressure.
In the given condition, the weather station has issued a tornado warning, that is moving in the northwest direction at a speed of 30 miles/hour. This provided information describes the velocity of the tornado, as from this data a meteorologist can determine in which direction and at what speed the tornado is moving. Prediction can be made from this data.
