POST ENV110 UNIT online exam 1

ENV110
Exploring Environmental Issues
Unit
1 Exam

DIRECTIONS

Please type your name
above, so that I can identify the exam. This
exam is a take home, open book exam.
Answer all questions by typing directly into this exam. The
answer to each question should be at least half of a page long.

Be sure to properly site
all sources in your answer (including the textbook). DO NOT COPY AND PASTE from any source. SafeAssign will identify this and you will
receive a zero for the question. To
submit the exam, please upload it into the SafeAssign link provided in the Unit
3 Blackboard material. The exam is due
by midnight on Sunday.

1.
What
is an ecological footprint? Using the
concepts of trophic level and energy flow, explain why the ecological footprint
of a vegetarian is smaller than that of a meat eater.

2.
What
is sustainable development and why is it important? How does it relate to environmental justice?

3.
Describe
the path that an atom of water would take through the water cycle. Explain and define all parts of the cycle
fully.

4.
What
types of species are most vulnerable to extinction, and what types of factors
threaten them?

5.
What
is a mass extinction? What is the 6th
mass extinction event? Why are
scientists so concerned about it?

6.
What
prevents a species from undergoing exponential growth forever? Be detailed in your answer- a one word answer
will not earn you any credit.

7.
What
is interspecific competition and intraspecific competition? Which is more intense, and why?

8.
What
is a keystone species? Provide two
examples of keystone species and the roles they each play in their ecosystem
(do not use the ones provided in the textbook or lecture notes).

9.
What
is an invasive species? Provide three
examples of invasive species and the effect they have had on their new
environment.

10.
Although
the population growth rate (r) is decreasing, the earth’s population continues
to increase. Explain what why this
is. How does education and opportunity
for women play into a decreasing population growth rate (r).