Answer:
you answer is 3 pages per minute
Step-by-step explanation:
devours 90 pages half an hour and so that means in one hour he would devour 180 pages.
well all you have to do is divide 90 by 30
90/30 = 3
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows. ... Ecosystems are controlled by external and internal factors.