Magna Carta was responsible for limiting the power of King John in 1215.
Answer:
C) X=100%; Y=0%
B) X=50%; Y=50%
Explanation:
The oldest rocks on Earth are about four billion years old. When a rock forms, it contains unstable isotope and no daughter isotopes, so every rock will contain 100% parent isotope and 0% daughter isotope.
The half-life of the radioactive isotope Of this particular rock is 5730 years. The half-life is an amount of time needed for half of the parent isotope (50%) to become a daughter isotope. In this case, after 5730 years, half of the initial parent isotope will transform to daughter isotope, which means that after 5730 years, there will be 50-50 of the parent and daughter istotopes presented in the rock. After two half-lives, there will be only 25% of the parent isotope remaining (that’s half of the previous 50% which remained after first half-life), and after three half-lives, there will be only 12,5% of the parent isotope remaining and so on.
The Tian Shan mountain range is located in the north and the west of Taklamakan Desert, which is located in Central Asia.
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To accurately create a topographic map, the types of data one needs to collect include the "determination of the right elevation contour."
Also, a geographer needs to determine the contour of the landscape. A topographical map is generally used to show the details of physical features on the site.
Some of the features or things you find on the topographical maps include buildings, fences, roads, rivers, forests, elevation height, etc.
Hence, in this case, it is concluded that making a topographical map counter and height of the land is essential.
Learn more here: brainly.com/question/17178287
