Question

Why is radon-222 considered dangerous?

It is the second leading cause of lung cancer in the U.S.

It cannot be seen, smelled, or tasted.

It is a product of the natural decay of uranium and is often found in the soil on which houses are built.

All of these


Nuclear medicine is only useful for diagnosing a few, select diseases.

TRUE

FALSE


From an environmental perspective, it is important to ensure that radioactive materials are stored properly, because radioactive samples:

can be in liquid, solid or gas forms

once they are leaked into the environment, could cause serious health hazards to all living organisms

can remain radioactive for long periods of time

can do all of these


Which of the following statements is correct regarding spent fuel rods?

They are no longer radioactive.

They contain only one type of isotope of the fuel (uranium).

They usually remain radioactive for less than 100 years.

They are scheduled for deep underground burial.



All low-level waste disposal sites use a series of natural and engineered barriers to prevent radioactivity from reaching the biosphere.

TRUE

FALSE


Nuclear energy is considered an alternative energy because it is renewable, does not pollute the environment, and reduces carbon dioxide emissions.

TRUE

FALSE

Answer 1

q1. all of these

q2 false

q3 can be in liquid, solid or gas forms

q4 idk

q5 They usually remain radioactive for less than 100 years.

q6 idk

q7 TRUE

educated guess and i remember some things from chem. Hope its all good

Answer 2

given below

Step-by-step explanation:

1) correct answer is option d)

it is the second leading cause of lung cancer in USA it cannot be seen and smelled or tasted.

2) false

nuclear medicine can be used for wider variety of diseases.

3) correct answer is option d)

it is correct that radioactive element are present in liquid, solid or gas forms and it is very hazardous if they leaked and it can remain radioactive for long period of time.

4) the correct answer is option c

spent fuel are radioactive have many isotopes and is to be disposed very carefully and it remains radioactive for less than 100 years.

5) True

Radioactivity waste should be properly disposed as it contain very hazardous material which can affect humans.

6) True

Nuclear energy is a renewable energy and it can be used as the alternative source of energy it produce less pollution.