Answer:
<u>Beach norishment</u> refers to <u>addition of sand on beach</u> to <u>reduce the erosion effect</u> by water currents.
<u>Vegetation management</u> is the <u>(re)plantation</u> of plants to reduce the erosion effect on beaches caused by waves.
Explanation:
In the statements given above, addition of hard structure doesn't primarily means beach nourishment, likewise, vegetation management doesn't replace the sand on beach rather prevent sand erosion. However, vegetation management brings in plants that hold the sand especially on sand dunes. Floods cannot be totally controlled by beach nourishment but with the help of plants, their impact can be minimized.
<u>Question</u>:
Which value is being measured in the columns labeled "Fraction remaining” and "Percentage remaining”?
-
years of decay
- quantity of energy
- number of stable atoms
- amount of material that has not decayed
<u>Answer</u>:
"Amount of material that has not decayed" being measured in the columns labelled "Fraction remaining” and "Percentage remaining”
<u>Explanation</u>:
The table shown below having explains about the half life , the amount of sample in both fraction and percentage. The first column named half life elapsed tells us the the number of half life that that is completed. Half life is the time taken for an element to reduce or decay into half of its initial amount.
The fraction remaining column gives the amount of sample that is left behind after the half life particular number of half life has completed. similarly the percentage remaining column gives the amount of sample in percentage. For example, the 5th row tells us that after 4 half life is over 
of the sample remained. In percentage it is 6.25%
A combination of a dominant and recessive allele (ex: Hh)
Answer:
Breathing is the process of exchange of carbon dioxide and oxygen between the body and the environment. The exchange of gases depends upon the partial pressure of oxygen.
When the individual hold its breath, the amount of oxygen level in the body gets decreased. This increases the carbon dioxide level in the body. The increase in the carbon dioxide level reduces pH and increase the hydrogen ions in the body. The biocarbonate levels in the body also increases.
