Answer:
All these characteristics are part of a young river
Explanation:
A river has 3 phases, the youth, the maturity and the old age.
When a river is young, starts with a lot of water on it, with a lot of force because it will start to trace the path of the river. For this reason, there is a lot of mud, rocks, the water runs faster, there are some parts of the river that are irregular. By passing the time when the basin stabilize, the mud start to go to the bottom, the rocks stay almost still and the velocity of the water is not so much.
Explanation:
A) How much of the parent (X) and how much of the daughter (Y) were present at the time the rock formed? Choose one of the following and explain why
Answer : C) X = 100 % ; Y = 0 %
At the time when the rock was formed, we would have 100% of the parent and 0% of the daughter.
When a radioactive element in rock initially crystallizes, we will only have the parent isotope inside with no trace of the daughter isotope.
A radioactive material is one that spontaneously disintegrates. It produces the daughter stable isotopes as it emits radiations in the process.
The daughter isotope is the stable form of the parent. So when a rock forms, the daughter would not have been produced.
B) X = 50 % ; Y = 50 %
After the time 5730yrs has elapsed, we are going to have both daughter and parent in the ratio 50% to 50%.
The half-life is the time taken for half of a radioactive isotope to decay to half of its original component.
When a radioactive element is decomposing, it will produce daughter isotopes.
At the half-life time, the parent would have disintegrated by half and produced half of the daughter.
learn more:
Half life brainly.com/question/1695370
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Testimony of Witness and EyeWitness Accounts ?? I am unsure if it is true. But this is what I got up with. If there are supposed to be multiple choices below.. I do not see them.
Hey There!
Cattle ranching causes erosion which removes soil by wind or water.
Thank You!
