Help with Blue Planet Homework?

Question

1) The only terrestrial planet with volcanoes is the Earth

True

False
.

2)
The most common element in the Earth as a whole is
Hydrogen


Uranium


Oxygen


Iron

3 )
The most common element in the Solar System as a whole is:
Hydrogen


Uranium


Oxygen


Iron


4)
Which are the two most abundant elements of the Earth’s continental crust?
iron and aluminum


oxygen and silicon


oxygen and hydrogen


silicon and aluminum

5)
The primary source of the Earth’s magnetic field is:
Magnetic minerals in the Earth’s crust


Interactions of the solar wind with the upper atmosphere


Flowing liquid iron in the Earth’s outer core


Radio waves in the lower atmosphere


6) The kind of seismic wave that cannot travel through a liquid is:
A surface wave


A P-wave (body or compressional wave)


An S-wave (shear wave)


A W-wave (weak wave)


7)According to Alfred Wegner’s continental drift idea, all the continents were once joined together in a supercontinent called:
Wegneria

Pangea

Baltica

Appalachia


8)The Earth’s mantle is made up of what material:
liquid iron and nickel


different isotopes of hydrogen


light (density) silicate minerals


heavy (density) silicate minerals


9)The asthenosphere is best described as a mechanically weak layer with a consistency similar to plasticine or playdough.

True

False

Answer 1

Well, ..., I won't do your home work for you. You can find the answer to all of these questions with a simple web search. Start with Wikipedia. The astronomy and earth science sections are pretty good.

Answer 2

1) False.

2) Hydrogen

3) Same

4) Oxygen and silicon

5) none

6) S

7) Pangea

8) Heavy

9) False



Now, all you have to do is figure out which of the answers are correct - so you have to do the reading anyway. Seems like a waste of time to post the question, wait for answers, then have to check if they are right.

Answer 3

All the answers can be found in your textbook. Or Wikipedia. Do your own work.