Question

QUESTION 1

1. A scientific hypothesis must be testable.

   True

   False

QUESTION 2

1. A(n) ____________________ is a set of components that functionand interact in some regular way.

QUESTION 3

1. Which of the following is true of matter?

   	a.	It can exist as two physical states.
   	b.	It can exist as four chemical forms.
   	c.	It can exist as three physical states.
   	d.	It can exist as a physical state or as a chemical form.
   	e.	It can exist as three chemical forms.

QUESTION 4

1. Which of the following is the best definition of science?

   	a.	Data supported by small amounts of evidence
   	b.	A field that is never investigated using statistical tools andmodels
   	c.	Study that is best described as a collection of opinions
   	d.	A broad field of study focused on discovering how natureworks
   	e.	A field in which observations are rarely tested

QUESTION 5

1. The second law of thermodynamics says that whenever energy isconverted from one form to another in a physical or chemicalchange, ____.

   	a.	the second form of energy will always be kinetic
   	b.	we end up with lower-quality or less useable energy than westarted with
   	c.	more energy will be present in the second form
   	d.	light is produced
   	e.	heat is absorbed

QUESTION 6

1. The majority of Americans using food banks are over the age of65.

   True

   False

QUESTION 7

1. A climax community reaches a peak phase of growth and then, aspart of its cycle, dies.

   True

   False

1. QUESTION 8

   Tropical rainforests occupy lmore than 15% of the global landarea.

   True

   False

   QUESTION 9

   The following macronutrient does not occur as a gas:

   		Oxygen
   		Nitrogen
   		Phosphorous
   		Carbon
   		Hydrogen

   QUESTION 10

   The "tragedy of the common" refers to the decimation of trees inthe Boston Common.

   True

   False