Reading the layers back

Exercise and reference answers

Questions

1. Question

   How many main layers does the chapter describe?

   Choices

   1. two
   2. three
   3. five

   Correct choice

   three

2. Question

   Which is thinnest?

   Choices

   1. mantle
   2. core
   3. crust

   Correct choice

   crust

3. Question

   Which lies at the centre?

   Choices

   1. core
   2. crust
   3. mantle

   Correct choice

   core

Explanation