Which has been the primary source of energy in the most recent century?
(1 point)
Responses
petroleum, natural gas, and coal
petroleum, natural gas, and coal
wood and coal
wood and coal
hydroelectric and other renewables
hydroelectric and other renewables
wood and nuclear
The primary source of energy in the most recent century has been petroleum, natural gas, and coal.
Use the scenario to answer the question.
Edwin buys a water bottle, reuses it twice, and then recycles it. Eleanor buys a water bottle, reuses it twelve times, and then throws it away.
Which energy cost would apply to Edwin, but not to Eleanor?
(1 point)
Responses
the cost of transporting the bottle to the store
the cost of transporting the bottle to the store
the cost of transporting the bottle away from the house
the cost of transporting the bottle away from the house
the cost of processing the bottle after it was no longer used
the cost of processing the bottle after it was no longer used
the cost of producing the original bottle
The cost of processing the bottle after it was no longer used would apply to Edwin because he recycles the bottle after reusing it twice. This cost would not apply to Eleanor as she throws away the bottle after reusing it twelve times.
Your class goes on a field trip to observe drilling machinery. The geologists at the drill site show you displays of drilled rocks to compare different types of drills and methods. The drilled holes in one rock display are significantly larger than the holes drilled in the display next to it. Given this information, which statement is correct? (1 point)
Responses
The rock display with larger holes shows petroleum drilling, which is deep underground.
The rock display with larger holes shows petroleum drilling, which is deep underground.
The rock display with smaller holes shows petroleum drilling, which is closer to the surface.
The rock display with smaller holes shows petroleum drilling, which is closer to the surface.
The rock display with larger holes shows copper drilling, which is closer to the surface.
The rock display with larger holes shows copper drilling, which is closer to the surface.
The rock display with smaller holes shows copper drilling, which is deep underground.
The rock display with smaller holes shows copper drilling, which is deep underground.