Question

What are two different ways to describe and label the layers of the Earth?

Answer 1

Layers can be defined by either their chemical or their rheological properties. Earth has an outer silicate solid crust, a highly viscous mantle, a liquid outer core that is much less viscous than the mantle, and a solid inner core.

Answer 2

Answer:

A random sample of 200 dancers were asked if they practice dancing 20 h or more per week. The results are shown in this table.

Based on the data in the table, select Correct or Incorrect for each statement.

Correct Incorrect

The ballet dancers practice 20 h or more per week.

 

The jazz dancers practice 20 h or more per week.

 

The type of dancing does not seem to affect the number of hours of practice for the dancers in the survey.

 

  Practice 20 h or more per week  Do not practice 20 h or more per week

Ballet dancers  113  0

Jazz dancers  0  87

Explanation: