questions with complete solutions
The nation that currently has the most progressive renewable energy policies and also produces
the greatest amount of electricity from PV solar is - correct answer ✔✔Germany.
The basic building block of all silicate minerals is the - correct answer ✔✔silicate tetrahedron.
Consider a huge rotating cloud of particles in space that gravitates together to form an
increasingly dense ball. As the cloud shrinks in size, it - correct answer ✔✔rotates faster.
One difficulty with the process of using hydrogen as a power source is that it - correct answer
✔✔requires a substantial energy investment to begin the process.
The reason we don't have eclipses monthly is because of the - correct answer ✔✔different
orbital planes for Earth and the Moon.
A polymorph can be defined as - correct answer ✔✔minerals that have the same chemical
formula, but different crystal structures.
Water precipitated over land completes its cycle as it
A) percolates into the ground.
B) evaporates from the surface to the atmosphere.
C) enters streams and lakes and makes its way to the oceans.
D) all of the above - correct answer ✔✔D) all of the above
, A potential energy source from oceans is - correct answer ✔✔ocean thermal energy.
When assessing energy resources, it is helpful to use a measure called EROI, which is - correct
answer ✔✔energy returned divided by energy invested.
The change in entropy of a closed reversible system - correct answer ✔✔equals zero.
Every winter morning when the sun is shining bright, a man living in Montana pulls back the
drapes on a large, south-facing window. In this way, he helps heat his home using - correct
answer ✔✔passive solar heating.
If a body is fully or partially submerged in a fluid, a buoyant force directed upward depends -
correct answer ✔✔on the mass of the replaced fluid.
The energy bill passed by the U.S. Congress in 2007 - correct answer ✔✔raised the CAFE
standard to 35 mph for vehicles by the year 2020.
The three kinds of plate convergence are - correct answer ✔✔oceanic-oceanic, continental-
oceanic, and continental-continental.
In the United States, _____ is the leading source of energy. - correct answer ✔✔oil
A major advantage of hydrogen-generated electricity over other new renewable energy sources
is that it ______. - correct answer ✔✔can be produced where and when electricity is needed
rather than being intermittent
Humans shape Earth's surface - correct answer ✔✔to a large degree.