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
Vadim26 [7]
3 years ago
6

What is the source of the radioactivity?

Physics
1 answer:
Nataly_w [17]3 years ago
4 0
The Earth itself is a source of terrestrial radiation. Radioactive materials including uranium, thorium, and radium exist naturally in soil and rock. Essentially all air contains radon<span> , which is responsible for most of the dose that Americans receive each year from natural background sources.</span>
You might be interested in
A student is given a red and a blue liquid. The two samples of liquids are
topjm [15]
<h3>Option D) The red liquid has a smaller specific heat</h3>

When a substance has smaller specific heat it needs less heat to shows changes in it hence making the option D correct.

3 0
2 years ago
Read 2 more answers
Which of the following happens during cell division? Question 7 options: It becomes more difficult for the cell to get rid of wa
kolbaska11 [484]

Answer;

B. Each daughter cell receives its own copy of the parent cell's DNA.

Explanation;

Cell division is the process in which a parent cell divides, giving rise to two or more daughter cells. It is an essential biological process in many organisms.

There are two types of cell division. Mitosis is used for growth and repair and produces diploid cells identical to each other and the parent cell. Meiosis is used for sexual reproduction and produces haploid cells different to each other and the parent cell.

6 0
3 years ago
What would be a good reason to increase friction between surfaces? to allow objects to slide past each other easily to reduce we
Lelu [443]
So basically the objects would be sandpaper and smooth metal, the sandpaper can indirectly touch the metal since it’s so smooth and it won’t cause any temp change either
5 0
2 years ago
Read 2 more answers
Calculate the speed of a car that travels 250 miles in 4.0 hours. (remember your unit)
MrRa [10]
250/4= 62.5 mph

to find the mph of a car, you need to divide the number of miles traveled by the hours that it took to travel that many miles
6 0
3 years ago
Why don't astronauts use a fountain pen or a ball point pen with liquid ink in a spacecraft
mojhsa [17]
It's probably because there is no gravity which ballpoint pens need for inkflow to the tip.
4 0
3 years ago
Other questions:
  • How can mechanical waves help in the treatment of cancer?
    10·2 answers
  • Taylor drives 5 miles in 10 minutes. She stops at a light for 2 minutes. She then travels another 10 miles in 8 minutes. What wa
    14·1 answer
  • What is the relationship between the frequency and the pitch of a sound?
    9·1 answer
  • What is the main difference between the Schrödinger model and the Bohr atomic model?
    8·1 answer
  • The mass of an electron is 9.11×10−31 kg. If the de broglie wavelength for an electron in a hydrogen atom is 3.31×10−10 m
    14·1 answer
  • The space shuttle orbits 340km above the surface of the earth.What is the gravitational force on a 9.0kg sphere inside the space
    14·1 answer
  • Calculate the total energy of 2.0 kg object moving horizontally at 10 m/s 50 meters above the surface
    7·2 answers
  • A box of mass 21 kg sits on an inclined surface with an angle of 10°. What is
    10·2 answers
  • Optimists usually have a higher degree of wellness than pessimists.<br> O True<br> False
    15·1 answer
  • A boulder of mass 4 kg rolls over a cliff and reaches the beach below with a velocity of 20 metres per second minus 1.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!