Oceanography, geology, meteorology, astronomy, and environmental science
The statements which are true about half-life are given below:
- A radioactive element's half-life stays the same when its temperature changes.
- A radioactive element's half-life stays the same when the pressure upon it changes.
Thus, the correct options are B and F.
<h3>What is Half-life?</h3>
The half-life of any radioactive element may be defined as the time taken for the radioactivity of a specified isotope to drop to half of its original value.
The above statement is true about the half-life of any radioactive element because the half-life of any substance does not depend on pressure, temperature, and concentration.
Therefore, it is well described above.
To learn more about Half-life, refer to the link:
brainly.com/question/2320811
#SPJ1
The term for a lack of a nutrient is called malnutrition.
You can tell because the prefix mal- derives from French, meaning bad, or wrong.
Therefore, it literally means "bad-nutrition", meaning you're not getting enough nutrition. In other words - a lack of nutrition.
Answer:
B) potential energy ⇒ kinetic energy ⇒ light energy
D) It was never used and therefore was not transformed
<span> The pervaporation process is a relatively new, having common elements, reverse osmosis and gas permeation . The separating liquid mixtures by pervaporation difference in vapor pressure between the feed and the permeate. This difference in vapor pressure can be obtained in different ways: by vacuum applied to the permeate ,the most used laboratory procedure, or by cooling the permeate vapor, causing a partial vacuum, and most common industrially.
The membrane destillation use heat streans to provide the evaporations. The pervaporation uses differente methods.
I hope it help.</span>