Answer:
Not more than 7 credit hours
Explanation:
Though the credit hours varies by institution, the standard for most institution is 3 - 6 hours for working class students.
From the list of given options, the closest to 3-6 hours is "not more than 7 hours"; hence, option D answers the question.
Answer:
False
Explanation:
if a geologist knows what the organism is and it has only lived throughout one period then it will take time to build up into layers which may take a long time. Therefore they must have been in different time periods depending on how long the period lasts.
( I don't know much about this topic but I hope it helps? :D)
If it is increased, then it would be louder.