Chapter Two Flashcards
0
Q
What is albedo?
A
Albedo is used to describe the extent to which material can reflect sunlight. High albedo reflects a lot of light.
1
Q
What is energy?
A
Energy is the ability to do work.
2
Q
How do organisms get energy?
List and explain the three ways.
A
Photosynthesis- sunlight.
Chemosynthesis- chemicals from environment.
Cellular respiration- the breaking apart of glucose.
3
Q
What are autotrophs?
A
Autotrophs make their own food.
4
Q
What are heterotrophs?
A
Heterotrophs do not produce their own food.
5
Q
What are the laws of thermodynamics?
A
1- energy cannot be created or destroyed, only transferred.
2- when energy is transferred it goes from high concentration to low concentration becoming less organized each time.
