Earthquake and Climate Concepts Oral Easy

What causes a tsunami?

• Underwater earthquakes

• Tornadoes

• Floods

• Droughts

How does differential heating of land and water create sea breezes?

• Land heats faster than water during the day, creating low pressure over land; cooler air from sea replaces rising warm air.

• Water heats faster than land, causing high pressure over land and low pressure over water.

• Both land and water heat at the same rate, resulting in no significant air movement.

• Land remains cooler than water throughout the day, preventing any breeze from forming.

Why do regions like Mindanao have different climate types compared to Luzon?

• Variations in landforms, elevation, and proximity to oceans create diverse microclimates.

• Both regions have the same climate due to their geographical proximity.

• Mindanao has a tropical climate while Luzon has a temperate climate due to altitude differences.

• The climate differences are primarily caused by human activities and urbanization.

Why does intensity vary across locations affected by the same earthquake?

• Intensity increases with distance from the epicenter due to energy concentration.

• Intensity remains constant regardless of distance from the epicenter.

• Intensity decreases with distance from the epicenter due to energy dispersion.

• Intensity is only affected by the depth of the earthquake.

Explain how subduction zones contribute to tsunami generation.

• Subduction zones involve plate collisions, causing vertical seafloor displacement and massive water displacement.

• Subduction zones are areas where tectonic plates pull apart, leading to the formation of new oceanic crust.

• Subduction zones are characterized by the lateral movement of tectonic plates, resulting in shallow earthquakes.

• Subduction zones are regions where tectonic plates slide past each other, causing minimal geological activity.

What role does the thermosphere play in communication technology?

• Absorbs radio waves, preventing communication.

• Reflects radio waves back to Earth, enabling long-distance communication.

• Generates radio waves for communication.

• Blocks all forms of communication signals.

Why does water displacement during an underwater earthquake lead to a tsunami?

• The seafloor's sudden uplift/drop pushes water upward, forming waves.

• The earthquake causes a vacuum that pulls water away from the shore.

• The seismic waves create a barrier that prevents water from moving.

• The underwater earthquake generates heat, causing water to evaporate and form clouds.

If a seismograph detects P-waves but not S-waves, what can you infer about the earthquake’s location?

• The earthquake is on the opposite side of the Earth (S-waves blocked by liquid outer core).

• The earthquake is nearby, within a few kilometers.

• The earthquake occurred in the Earth's crust.

• The earthquake is in a region with solid rock.

Define monsoons and explain their origin (e.g., mausim).

• Seasonal winds originating from the Arabic word 'mausim', caused by temperature and pressure differences between land and ocean.

• Winds that occur only in tropical regions, unrelated to temperature differences.

• A type of storm that occurs during the summer months, primarily in coastal areas.

• Winds that blow consistently in one direction throughout the year, without seasonal variation.

Compare land breezes and sea breezes in terms of timing and direction.

• Land breeze occurs during the day and blows from land to sea.

• Sea breeze occurs at night and blows from sea to land.

• Land breeze occurs at night and blows from land to sea.

• Sea breeze occurs in the morning and blows from land to sea.