Why do scientist refer to Earth's mantle as a plastic? a. The ...

[NClaborn]

Why do scientist refer to Earth's mantle as a plastic?
 
  a. The mantle has the properties of a solid, but can flow under pressure.
  b. The mantle has the mixed properties of a solid and a liquid.
 c. The mantle frequently shifts between its states of matter.
 d. The mantle is a softer solid as it approaches the core.
 e. The mantle has the properties of a liquid, but is limited in its movement.

Question 2

The age of a star cluster can be approximated by finding its turnoff point in the distribution of data points that represent stars on the H-R Diagram.
 
  a. True
  b. False
  Indicate whether the statement is true or false

[mcinincha279]

Answer to Question 1

a

Answer to Question 2

True

[NClaborn]

Wow, this really help

[kjohnson]

Thanks for the timely response, appreciate it