1st Quarter Periodical Test Flashcards
What are the two seasons in the philippines?
Wet and dry
What human activities can trigger a landslide?
Buildings being demolished or a team of construction workers clearing trees for a new road.
What is a possible cause of a landslide?
Slope excavation
What can you do to help adapt and mitigate coastal hazards?
Promote the programs of the community.
Why is the cordillera administrative region included in the most landslide prone provinces in the philippines?
Because it is near in mountain ranges
The movement of rock, debris, and soil down a slope.
Landslide
Ring of fire can be found in
The pacific ocean
Associated with the volcanic eruption/ mixed with water, it will break apart and stop flowing/ a mass movement of rock fragments, soil, and debris down slope eons and eras and end in zoic- because these time periods were recognized by the animal life present at that time.
Landslide
Scientists are able to arrange the fossils they gathered ___
According to age
Geologists separate time into period by __
Looking at the relative time of a fossil.
Why are fossils essential to the scientist and to the history of the earth?
It describes the history of past life and environment.
Principles to recognize the relative ages of rocks/ used stratigraphy method (oldest found at the bottom and the youngest at the top)/ used to arrange geological events and the rocks they leave behind in sequence.
Relative dating
The formation of new crust from magma that rises to the earth’s surface between the two plate boundaries.
Divergent boundary
Strike slip fault where in san andreas fault which is bounded by north american plate and the pacific plate.
⬆️⬇️
Discovery of seafloor spreading
The crust of the oceans is very young relative to the age of the crust of the continents.
Why are intrusive igneous rock typically larger than those of extrusive igneous rock?
Because the magma cools much slower.
They cool down quickly/ they have small crystals/basalt and scoria are example of these rocks.
Extrusive rocks