Tectonics

Question 1

What is the structure of the Earth?

Answer 1

The Earth is composed of the crust, mantle, outer core, and inner core.

Question 2

What are the processes of plate tectonics?

Answer 2

Plate tectonics involve convection currents in the mantle, slab pull, and the movement of tectonic plates.

Question 3

Know the different types of plate boundaries: Constructive, Conservative, Destructive

Answer 3

Constructive: Plates move apart; Conservative: Plates slide past each other; Destructive: Plates collide, causing subduction or collision.

Question 4

How does the movement of tectonic plates cause shallow focus earthquakes?

Answer 4

Shallow focus earthquakes occur near the Earth’s surface due to the movement and interaction of tectonic plates.

Question 5

How does the movement of tectonic plates cause deep focus earthquakes?

Answer 5

Deep focus earthquakes occur at greater depths, usually in subduction zones where one plate is forced under another.

Question 6

How are earthquakes measured?

Answer 6

Earthquakes are measured using the Richter scale (magnitude) and the Mercalli scale (intensity and effects).

Question 7

Compare and contrast the characteristics of shield and composite volcanoes

Answer 7

Shield volcanoes have gentle slopes and basaltic lava, while composite volcanoes have steeper slopes and more explosive eruptions with andesitic or rhyolitic lava.

Question 8

How can technological developments impact mitigation in areas prone to earthquakes or volcanoes?

Answer 8

Technological developments like early warning systems, improved building codes, and monitoring equipment can help mitigate the impacts of earthquakes and volcanic eruptions.