In many scientific disciplines, hypotheses are tested by direct ...

[Hungry!]

In many scientific disciplines, hypotheses are tested by direct laboratory experiments. Explain two reasons why direct laboratory experimentation is not always possible in geology.
 
  What will be an ideal response?

Question 2

Attention to which of the following would provide the greatest impact to all of the Millennium Development Goals?
 
  A) Protein content of foods
  B) Clean water and modern sanitation
  C) Prevention and treatment of injury
  D) Maternal pre-natal and post-natal care for mothers and infants

[Bsand8]

Answer to Question 1

The number of variables is too large.
The rate of the process is too slow.
The pressure and temperature conditions are too extreme.

Answer to Question 2

D