Answer:
B) Developer is poured down the drain while fixer can be reduced
Explanation:
The effluents produced during photographic processing includes, wash water, bleach, fixer, and developer
The developer is an alkaline solution, with a pH of approximately 10.0, while the pH of the fixer is about 4.3, it is therefore, acidic
The rate of discharge of the developer to the fixer is 2 to 1, and the exhausted developer, fixer and process effluents combined are neutral and can be handle by the the treatment works and the drain pipes
Fixer which remain clear can be reused for more than a day, while the spent basic Developer and the acidic Spent Stop Bath can be combined to form a neutral solution, having a pH of approximately 7, which make them less hazardous to be disposed off down the sink into the drain
Therefore, <em>developer is poured down the drain while fixer can be reused</em>
Answer:
<em>Creation of Dependencies</em> is not the only benefit of trade in the list.
Explanation:
People can provide the access to their resource with the help of trading, it will also increase the satisfaction of customer as he will be able to buy the product of his own choice with satisfactory price, as it breaks the monopoly of local producers.
There many disadvantages of the trade, such as it will create dependencies on other countries and local producers not be able to produce that products, this will lead to increase in imports and will increase the trade deficit of the country.
Answer:
Explanation:
The following program is written in Python. It simply creates an endless loop that continously asks the user for an input. If the input is not -1 then it outputs the same input, otherwise it exists the program correctly. A test output can be seen in the attached image below.
while True:
answer = input("Enter a value: ")
if answer != "-1":
print(answer)
else:
break
