Question

1. What did Alfred Wegener's 1912 theory primarily describe?

a. Ring of Fire b. Continental Drift c. Plate Tectonics d.Convection Currents

2. What factor is primarily responsible for the variation in distinct life zones encountered as you ascend up a mountain?

a. Changes in Albedo b. Changes in Rock Type c. Changes in Temperature d. Changes in Pressure

3. The magnetic poles have reversed many times in Earth's history.

a. True b. False

4. A distinct correlation can be made between the pattern of ocean currents and the _________ immediately above them.

a. space b. ice formations c. water clarity d. atmospheric circulation

5. In your own words and using college level writing, describe plate tectonics. Your answer should include:

• What is plate tectonics?
• Why and how does plate tectonics occur?
• What are some potential hazards caused by plate tectonics?

6. In your own words and using college level writing, describe how abrupt climate change. Your answer should include:

• What is abrupt climate change?
• How and why could abrupt climate change occur?
• How do we know abrupt climate change has happened in the past?

7.

Match each of the letters on the map below with its correct name: ✓ [Choose ] Cascade Range Rocky Mountains Sierra Nevada Mountains Basin and Range Appalachian Mountains [Choose] [Choose ]

Answer 1

Ans 1.

Alfred Wegener gave the theory of continental drift in 1912 where he talked about drifting of the continents.

Ans 2.

It largely occurs due to change in temperature. Example – at plains, you find trees of deciduous type with monsoon type climate, as you go up, the trees become more like conifers due to different climate there and their leave become more harder so that they can bear extreme cold climate. So the correct option is (c)

Ans 3.

Yes, it is true. There was a type when north pole was somewhere in south Africa while north pole south pole in Russia

Ans 4.

The correct option is (d) i.e. atmospheric circulation. Since, if the current is in equatorial part, more evaporation would occur, that will lead to formation of clouds and more precipitation. Thus, there will be more water vapor above it.

Ans 5.

Tuzo Wilson was the first person to use the term plate tectonics and by this he meant that the earth is like an egg (or you can imagine a kinder joy) where the upper shell is hard while the activities are occurring below it. Similarly the earth is made up of plate that are in constant motion and lying about asthenosphere. There are always disintegration of radioactive elements occurring in the earth that leads to release of energy and they hit the earth surface causing break in the plates that leads to three types of motions i.e. divergent, convergent and transform.

Plate tectonics can cause earthquakes and volcanoes, landslides etc.

Ans 7.

A = Cascade range

B = Basin and range

C = Rocky mountains

D = Sierra Nevada

E = Appalachian mountains

I hope the answer is clear to you now, in case you have any query further related to the question, please leave a comment, we will try our best to fix it for you. Goodluck