An economy that releases a minimal amount of greenhouse gas emissions into the atmosphere is a
a. low-carbon economy.
b. low-nitrogen economy.
c. low-oxygen economy.
d. low-sulfur economy.

Which of the following mountain ranges is home to the largest mountain peak in europe? a. the carpathian mountains b. the caucasus mountains c. the balkan mountains d. the ural mountains select the best answer from the choices provided a b c d