Answer:
A.The hole in the ozone layer
Explanation:
• Montreal protocol is an international treaty that was signed to control the use of substances that are resulting in the depletion of the ozone hole.
This treaty was signed in the year 1987 and became effective form 1989.
• Since the time that this treaty has come into force, there has been a significant improvement in the ozone hole that was observed over Antarctic as it's size has decreased.
• This improvement has been possible because the treaty helped to phase out chemicals such as chlorofluorocarbons, carbon tetrachloride, etc. that are responsible for ozone hole depletion.
Some renewable energy sources are Wind, Solar, and water, these are all better to use then like coal or gas to power houses or cars, there safer to use because they dont produce any harmful chemicals like coal or gas do.
Answer: The program completed in a quarter of the time with four computers versus one computer
Explanation:
Distributed computing simply means using distributed systems in solving computational problems and this is done as the problem is divided into many tasks, whereby the tasks are accomplished by one or more computers.
Following the information given in the question, a speedup of 4 indicate that the program completed in a quarter of the time with four computers versus one computer.
The carrying capacity in the container when compare to the
yeast population at hour 16, it has reached carrying capacity however the waste
produced by the yeast has begun to damage or kill the yeast cells. It will
reach its maximum and will slowly begin to drop off after the point.
