Question

... Practice
TIME..
Tick() the correct answers.
1. Most information about the Earth's internal structure is obtained from-
(a) rocks
(b) seismic waves
(c) seafloor excavations
(d) volcanic eruptions
2.
Which element is common in mantle and core?
(a) aluminium
(b) magnesium
(c) silicon
(d) iron
3. This layer of the earth is not solid-
(a) inner crust
(b) mantle
(c)
outer core
(d) none of these
Fill in the blanks
1
The
ich​

Answer 1

Answer:

1. Seismic waves

2. Iron

3. Outer core

Answer 2

Answer:

seismic wave

iron

outer core