Answer:
Explanation:
By definition, after a radio active decay, a parent isotope will create a daughter isotope.
Layer C is exactly one half-life from Layer E at 50000 years. So half of the original parent isotopes from Layer E would have decayed to form daughter isotopes. As C has 18 radioactive isotopes together, E should have 6 daughter and 6 parent isotopes.
Answer:
Explanation:
Rock Layer E is 250,000 years old. Rock Layer C is 200,000 years old. So the two layers are off by 50,000 years; equal to one half-life.
As Rock Layer E has undergone radioactive decay ONCE, each parent isotope forms one daughter isotope after the decay.
Rock layer C has not undergone radioactive decay and has 18 radioactive isotopes. So that represents an equal number of parent and daughter isotopes, i.e. 9 parent and 9 daughter isotopes.
So there are 9 parent and 0 daughter isotopes in layer E.
Which statement best describes the Sun-Earth-Moon system during a neap tide?
Answer:
i think it is b
Explanation:
are these your options?
A. The Sun, the Moon, and the earth are in a straight line.
B. The Moon, the Sun, and earth form a right angle
C. Earth is behind the Sun and the Moon
D. The Sun is between Earth and the Moon
if they are then it is b
Answer:
B
Explanation:
What were James Buchanan’s political accomplishments? Identify and explain at least 3 accomplishments
Answer:
James Buchanan was a lawyer whose gift for oratory led him to politics. He served in the Pennsylvania legislature (1814–16), the U.S. House of Representatives (1821–31), and the U.S. Senate (1834–45). He also served in the presidential administrations of Andrew Jackson, James K.
Explanation:
PLEASE HELP ASAP IM TAKING A TEST PLSPLS I WILL GIVE BRAINLIEST
What special physical property of the upper mantle supports the Theory of Plate Tectonics?
Lithosphere
The lithosphere is the solid, outer part of the Earth, extending to a depth of about 100 kilometers (62 miles). The lithosphere includes both the crust and the brittle upper portion of the mantle. The lithosphere is both the coolest and the most rigid of Earth’s layers.
What are the 3 challenges to the role of science?
Answer:
Financial crunch in academia. Researchers face perpetual struggle to secure and sustain funding. ...
Poor study design in published papers. ...
Lack of replication studies. ...
Brainliest would be great!
Answer:
Financial crunch in academia. Researchers face perpetual struggle to secure and sustain funding.
Problems with peer review.
The problem of research accessibility.
Explanation:
Imagine you are a city planner. You have the option of providing electricity to your city either through natural gas or through nuclear power. Natural gas is slightly cheaper, but new carbon taxes are about to be implemented in your state. Which do you decide to use? Why?
Answer:
Nuclear power
Explanation:
Even though it may cost a little more, it probably has the less effect on the environment. In times like these with climate change and the earth dying, it is important to do the best we can to reduce it. It has cons tho, nuclear power can be extremely dangerous if it goes wrong... Despite its safety measures, it's still pretty dangerous. Hope it helps!
The natural gas is slightly cheaper but as per taxes in the state, but for city planning more effcient way is to use nuclear power. Thus city panning can be done.
What is nuclear power?Nuclear power is a clean and efficient way of making use of energy resources that can be sued for boiling water that runs the turbines that generate electricity.
The nuclear power is power that is obtained from the fission and the nuclear decay. Even though nuclear power costs bit more but its less effect on the environment.
Find out more information about the nuclear power.
brainly.com/question/24295936
Please help me with the four bottom ones! :)
Answer:
Mountain ranges, earthquake and formation of new lakes occurs.
Explanation:
When two places comes together forming mountain ranges in that area. When two plates move away from one another, earthquakes occurs and magma rises to the surface. The diversion of rivers and the formation of new lakes. Two plates that forms a gap between each other causes the formation of new lakes, diversion of rivers and disturb the weathering patterns. When two plates sliding alongside each other forming faults that leads to earthquakes in that region.