<span>Water stored in sediments and rocks beneath's earth surface is called groundwater. </span>
<span>a. It is important that the hairs are pulled rather than cut as DNA is found in the hair follicle which is located under the scalp. This is where the hair gets it's blood supply. If there are any drugs in the person's system, traces of it will go into the hair shaft from the blood supply by the hair follicle.
b. It's necessary because hair doesn't grow constant or consistent and 25 to 50 hairs are needed for an accurate test. This decreases false positive results.
c. The hair drug test can go back to about 90 days to see if she has been clean within that time. Beyond that, interviews with family and friends would also be helpful. Phone records would also show if there has been any contact with a dealer.
d.This doesn't prove she's guilty because it just places her at the scene and could be circumstantial.</span>
Answer is b. Burning fossil fuels causes a decrease in the pH of ocean water making it more acidic.
Burning of fossil fuels release carbon dioxide and other harmful gases in the atmosphere. Carbon dioxide gets dissolves in the ocean to form carbonic acid. Due to formation carbonic acid, the pH of ocean water changes slightly. The average pH of ocean water was 8.2 slightly basic. Now it 8.1, it means there is 25 % increase in acidity of ocean water.
Answer:
Definition: The amount of carbon dioxide and other carbon compounds emitted due to the consumption of fossil fuels by a particular person, group, etc.
The Brønsted–Lowry theory is an acid–base reaction theory which was proposed independently by Johannes Nicolaus Brønsted and Thomas Martin Lowry in 1923.
