Environmental Science 101 - Final Exam Questions
with Correct Answers
Thermodynamics Correct Answer-Study of energy and its
transformations
System Correct Answer-Consists of multiple interacting parts with
defined boundaries
Types of systems Correct Answer-Closed: isolated system that does not
exchange energy with its surroundings
Open: exchanges energy with surroundings
*All natural systems are open
Laws of Thermodynamics Correct Answer-1st Law: Energy is not
created nor destroyed but transformed (ex. potential to kinetic energy)
2nd Law: Energy becomes less useful over time. Energy will be lost
from the system (often as heat)
*Entropy: energy transformations increase disorder
Electromagnetic spectrum Correct Answer-the range of wavelengths or
frequencies over which electromagnetic radiation extends
Gamma rays, x-rays, ultraviolet, visible light, infrared, microwave, and
radiowaves
, Heat can move in four ways Correct Answer-conduction, convection,
radiation, latent heat transfer
Composition of gases in the atmosphere Correct Answer-78% Nitrogen
21% Oxygen
.041% Carbon Dioxide
Solar Radiation Correct Answer-30% reflected to space
70% absorbed by land, sea, and air
Absorbed heat eventually radiated back to space as infrared radiation
(entropy)
Competitive exclusion principle Correct Answer-two species that
directly compete for resources cannot coexist
Interspecific competition Correct Answer-two or more species compete
for the same resource
Intraspecific competition Correct Answer-Two or more organisms of a
single species compete for the same resource
Trophic cascade Correct Answer-loss of carnivores results in explosion
of herbivores that destroy primary producers
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller cracker. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.