1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
saul85 [17]
3 years ago
12

Questions

Biology
1 answer:
Marat540 [252]3 years ago
4 0

The decay of uranium isotopes is used to provide information about the age of Earth.

<h3>Explanation:</h3>

Isotopes of Uranium U-232, U-233 , U-234 , U-235 , U-236 , U-238 are used as fuel in nuclear reactors or as explosives for nuclear weapons. Uranium 238 is not very radioactive and it constitutes for nearly 99.3% of natural uranium on Earth and has the longest lifetime: its period is 4.5 billion years, about the age of Earth.

Use of radiometric dating techniques help in defining the age of substances (natural or man-made) using the known decay rates of radioactive elements. Each element has an  individual decay rate and half life time.

Two Uranium isotopes (U-238 and U-235) are used for radiometric dating. Both the isotopes have different decay rates and half life period. Both are unstable and radioactive. Since two different isotopes produce two different decay clocks (one as a reference to other), it is beneficial in accurately determining the age of samples. The age of earth (rocks or other natural elements) can be easily determined using Uranium isotopes.

You might be interested in
Why can’t we forget things when we want to ?
andrew11 [14]
Because in that way we keep thinking about them. How can you forget something when you're thinking about it?!
7 0
3 years ago
Read 2 more answers
What 2 elements is salt made out of
professor190 [17]

Answer:

Sodium and chlorine

Explanation:

5 0
2 years ago
Read 2 more answers
Stabilizing force for the structure and stability of double-stranded nucleic acids?
Softa [21]
I need more points. That's why I am awnsering this, sorry.
8 0
3 years ago
Muscle soreness associated with strenuous exercise is at least partly due to
34kurt

Answer:

Anaerobic respiration resulting in oxygen debt, due to lactic acid accumulation.

Explanation:

After strenuous muscle activity extra oxygen is needed to re-convert lactic acid into glucose and ATP. As you exercise the liver anaerobically converts glucose to lactic acid and carbon dioxide this results in oxygen debts that needs to be repaid later.

Oxygen debt by definition is the amount of oxygen needed by muscles to oxidise lactic acid to glucose after muscle activity.

8 0
3 years ago
why is it a good idea for a bacterial cell to be abel to use glucose first as an energy source then switch to lactose
olchik [2.2K]

Answer:

Due to less steps and requires less energy.

Explanation:

The bacterial cell is able to use glucose first as an energy source then switch to lactose because glucose requires less steps and less amount of energy for the break down as compared to lactose. If lactose is the only sugar available to the bacterial cells, then bacterial cells will use it as energy source for the production of energy. In order to use lactose, the bacteria must express the lac operon genes, which encode the main enzymes for lactose uptake and metabolism.

8 0
2 years ago
Other questions:
  • Complete the sentence.
    13·1 answer
  • ASSIGNMENTS
    10·2 answers
  • Why is biomass considered a renewable resorce?
    5·2 answers
  • How did the enactment of the Endangered Species Act change the number of bald eagles in the United States after it was adopted i
    6·1 answer
  • If forces acting on an object are unbalanced which factor may result from an unbalanced force
    7·2 answers
  • Which statement is true of all matter?
    10·1 answer
  • A structure made up of two or more kinds of tissues that perform a special function is an
    12·1 answer
  • Describe homeostasis. How does the cell membrane maintain a stable internal environment?
    12·2 answers
  • Can you cook a steak in a bladder
    10·1 answer
  • If a doctor attempts to trigger the patellar tendon reflex and a lack of response occurs, what are potential regions where patho
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!