That would be 75% of Earth's atmosphere.
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 +
A cold front<span> is the transition zone where a </span>cold<span> air mass is replacing a warmer one
</span>T<span>hey move more slowly than warm fronts.</span>
Because other three are characteristics of the cold front and they move faster than warm
so option D is correct
hope it helps
Anemometers measure wind speed<span> and wind vanes measure wind direction. A typical wind vane has a pointer in front and fins in the back. When the wind is blowing, the wind vane points into the wind. For example, in a </span>north<span> wind, the wind vane points northward.
</span>mark me as brainliest if I helped:)
Answer:
A,B,D
Explanation:
I believe that "B" is a possibly one; if not, then just A and D.
Also by examining other economy; you can learn from it, what people do and how they live their lives, same with listening to different music from there, because people listen to different music in different cultures as well.^^
Have a great day, and let me know if its correct or not, if so I will take down the answer or fix it if its wrong.
