Post on 17-Jan-2018
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Review Unit 1B Inside the Earth #44.A Convergent Boundary is a
boundary is where two tectonic plates come together, or
collide.This can form mountains, and trenches. #45.A Divergent
Boundary is where two tectonic plates pull away or separate.This
can create new ocean floor and cause magma to rise to surface.
#46.A Transform Boundary is where two tectonic places slide past
each other.These type of boundaries are where most earthquakes
occur. #47.Why would a large, nonvolcanic mountain on a flat plain
be very unusual on the Earths surface?Volcano and mountains form at
convergent plate boundaries.Areas near these plate boundaries are
never smooth. #48.List the six layers of the Earth.
Inner Core Outer Core Mantle Asthenosphere Lithosphere Crust
(oceanic and continental) #49.A deep well or mine shaft goes
through which layer or layers of Earth?Crust only #50.When magma
reaches Earth's surface it becomes lava. #51 Earths crust Section V
is solid iron intense pressure Section IV is molten iron Section
III and II are magma (liquid) convection currents Section I is
solid #52.Compared to rocks in Earth's crust, rocks in the mantle
are moredense. #53.Areas on Earth's surface that lie above the
places where tectonic plates meet are characterized by frequent
earthquake activity. #54.Most earthquakes and volcanoes occur in
areas of the Pacific Ocean called "The Ring of Fire.The main reason
is that Lithosphere plate boundaries are found in that area #55.A
tsunami is a common secondary effect of a large earthquake off the
coast. #56.Uniformitarianism states that in an undisturbed layer of
rock, older rocks lie at the bottom and younger rocks lie at the
top. #57.Since there are no rock layers that have fossils of both
dinosaur and horse remains scientists know that dinosaurs and
horses did not exist in the same geological eras. #58.What is the
MAIN reason that the continents look very different than they did
100 million years ago? The continents have drifted apart from one
another on lithospheric plates. #59.Fossils of a particular animal
species have been found in both southern Africa and South America
but nowhere else.The MOST LIKELY reason? In the past, Africa and
South America were part of the same continent. #60.A fossil of an
ocean fish was found in a rock outcrop on a mountain. This probably
means that the mountain was raised up after the fish died.