World Geography Q2
Why are landslides considered erosion?
A landslide is a type of gravity erosion.
Describe the movement of tectonic plates at a divergent boundary.
At a divergent boundary two tectonic plates move apart.
breakdown of rocks and soils on a much smaller level.
Chemical weathering
List the dwarf planets.
Eris, Makemake, Houmea, Pluto
____ is the breakdown of large rocks into smaller ones by means of atmospheric conditions, such as rain.
Mechanical weathering
______ are terrestrial planets.
Mercury, Venus, Earth and Mars
What is different about the Earth's chemical composition as compared with the other planets in our solar system?
The Earth has an abundance of chemicals necessary for life and in the right proportion.
Why does the Earth's mantle remain in a liquid state?
The extreme temperatures and pressure cause parts of the mantle to remain in a liquid state.
sphere
a particular area; also, a globe or ball
terrestrial planet
a planet consisting of solid rock
dwarf planet
a planet smaller in size and gravitational pull than the other planets of the solar system
The Earth's ________ is considered part of the lithosphere.
crust
Most ______ comes to the Earth from the Sun in the form of light.
energy
Since it is made up of hydrogen and helium, Jupiter is considered a ________.
gas giant
Choose the four types of erosion.
gravity, water, wind, ice
Volcanic eruptions produced by hotspots have formed _______.
islands
The _____ of the upper mantle allows plates to move, and the motion shapes the continents.
liquid state
weather
manifestation of atmospheric events in a specific location
The Earth's ______ is important to the ongoing transformation of the surface.
mantle
What is the main content of soil?
minerals
magma
molten rock
What do scientists believe the Earth's core is made of?
mostly iron
weathering
process by which rock, soil, and minerals break down
erosion
process by which rock, soil, and minerals break down and are moved and displaced
What is molten rock?
rock that is melted.
Hydrosphere
sphere that makes up 70 percent of the Earth's surface
What is the Earth's crust made of?
tectonic plates
Biosphere
the Earth's spheres where all of life exists
orbit
the path of a planet or object around another
The ____ of the earth makes seasons possible. Seasons cause changes to weather. Weather changes are necessary to plant life and growth.
tilt
convergent
to come together
collide
to come together with great force
divergent
to move apart
debris
useless material or waste
Plate movement is ______.
very slow
