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Vesna [10]
3 years ago
10

Wind speed and wind direction aremeasured using which two instruments

Geography
1 answer:
Bezzdna [24]3 years ago
4 0

Answer:

Wind speed is measured by using anemometer and wind direction is measured by using Wind vane.

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Why is coal is called why is coal is called fossil fuel ​
AURORKA [14]

Answer:

Coal is called a fossil fuel because it was made from plants that were once alive! Since coal comes from plants, and plants get their energy from the sun, the energy in coal also came from the sun.

5 0
2 years ago
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Bowen’s continuous reaction series describes the crystallization behavior of a singlemineral (with variable chemical composition
FromTheMoon [43]

Answer:

C. plagioclase

Explanation:

From the magma silicate crystals are formed successively when the magma temperature reaches the typical melting temperature for each type of crystal. The first crystals formed at high temperatures can then change their composition or dissolve again. In this way the crystals already formed contribute their ions, molecules and atoms to magma and combine again forming new crystals whose melting temperature is lower than that of the first crystals formed. The new crystals are said to be stable at the lowest temperatures set now. These processes of change are called reactions. As several successive reactions occur as the magma temperature decreases the ordered series of reactions is called the BOWEN series in honor of the Canadian scientist who formulated this concept. There are two types of reactions, the continuous reaction and the discontinuous reaction.

<u> By continuous reaction a crystal formed at high temperatures such as a plagioclase rich in the Ca2 +</u> component gradually varies its composition by replacing a portion of the Ca2 + ions with the Na + ions and a portion of the Al3 + ions with the Si4 + ions. To maintain its neutrality, the replacement of Ca2 + by Na + is coupled with the replacement of Al3 + by Si4 +. The series of continuous reaction starts from the plagioclase rich in Ca2 +, passes through several plagioclase of intermediate composition towards the plagioclase rich in Na +

5 0
3 years ago
Students:
solong [7]

The first coordinate "29°N 98°W" is located in the following:

City: Falls City

Country: United States

Continent: North America

An for the second coordinate "19°N 99°W:"

City: Tlalnepantla

Country: Mexico

Continent: North America

A. The U.S.-Mexico border.

B. You left Texas and are now in the Federal District of Mexico.

C. It is next to Mexico City, which is both politically and economically the most important city in Mexico.

D. The Sierra Madre del Sur Mountain Range.

7 0
3 years ago
What causes the frequent migration of animals in Africa
Lelechka [254]
T<span>he Great Migration (in East Africa, mainly Kenya and Tanzania) is principally herds of wildebeest and zebra following their food and water supply.</span>
4 0
3 years ago
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Natural gas cannot flow out of some shale deposits naturally when the rock has low permeability. In this situation, a method cal
klio [65]

Answer:

1. 2. chemicals in the injected fluids can get into groundwater that is used for drinking water;

B). Hydraulic fracturing allows geologists to capture natural gas stored in the pore spaces of shale.

Explanation:

  • Fracking is a huge amount of the water that must be transported to sight at a significant environmental cost and occurrence of the minor tremors and is environmentally and potentially dangerous chemicals of they escape during the drilling and pollute the groundwater.
  • And the hydraulic fracking is drilling methods used to extract the natural oil and gas from deep inside the earth and is used to study the geology of the earth.
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3 years ago
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