The process which breaks down or dissolves of rocks and minerals on the surface. It can be physical or chemical.
Weathering
A mixture of hot, fragmented solids and expanding gases. These heavier-than-air flows, race down the sides of a volcano much like an avalanche.
Pyroclastic flow
The majority of earthquakes occur around here.
The ring of fire.
True/False. A tsunami is a secondary effect caused by the primary effect of an earthquake.
True
A primary effect of an earthquake is.
Ground shaking, building collapses.
The process of sediment carried by wind, flowing water, the sea or ice coming to rest and sometimes forming a new landform.
Deposition
Rock fragments and particles released by a volcanic eruption.
Tephra
The name of the plates that are continuously moving and cause earthquakes are called.
Tectonic plates
By building a tsunami sea wall, would it be a positive for society, the economy or the environment?
Society
A secondary effect of an earthquake is.
Power outages, loss of life, tsunamis, landslides etc.
The process whereby materials such as soil and rocks are worn away and transported by natural forces such as wind or water.
Erosion
Rain that is made up of highly acidic water droplets due to air emissions, specifically high levels of sulphur and nitrogen.
The tectonic plate boundaries that move towards each other are called.
convergent plate boundaries
Would the planting of tree-covered hills to mitigate the effects of a tsunami be beneficial to the society, economy or environment?
Society & environment
A tertiary effect of an earthquake is.
Homelessness, water contamination, medical expenses, mental health issues etc.
A coastal landform formed by deposition of material.
Spit
A destructive mudflow on the slopes of a volcano.
Lahar
The tectonic plate boundaries that move away from each other are called.
Divergent plate boundaries.
False
A primary effect of volcanos are.
Tephra, pyroclastic flow, lava flow
A landform which has a flat top and is elevated above the surrounding area with steep slopes or cliffs on some or all of the sides.
Plateau
This is a strategy to protect people in low-lying areas from pyroclastic flows.
Evacuation siren, evacuation route and education.
The most dangerous places to live in the world are.
Japan, Philippines or Indonesia.
True/false. The primary effect is what is a direct impact of the natural disaster. The secondary effect is what is the cause of the primary effect, and the tertiary effect is the long-term impacts.
True
A secondary effect of volcanos are.
Acid rain, lahars, earthquakes, loss of life