According to environmental scientists, what are the desired criteria for an energy source in deciding which one to use?
A. High or medium net energy yield with low environmental impacts
B. Low or negative net energy yield with low environmental impacts
C. High or medium net energy yield with high environmental impacts
D. Low or negative net energy yield with high environmental impacts
Answer: A
You might also like to view...
Which pair of variables below are not related in a positive feedback loop?
A. snow cover on Earth's surface; global average temperature B. population of rabbits and bobcats C. water vapor and air temperature D. population of hummingbirds and population of flowers
Describe how contact metamorphism occurs. What are the important factors that cause rocks to alter in
this type of metamorphism? What will be an ideal response?
At which point does a tropical system earn a name?
A) when it crosses the equator B) when it becomes a hurricane C) when it becomes a tropical storm D) when it becomes a tropical depression
This cobble shows prominent scratches because ________
A) it was tumbled in a stream B) it was scraped against other rocks in a glacier C) it was blasted by wind D) this was its shape when it was mechanically weathered from its source rock