1. why is the "greenhouse effect" important for life on the earth?
a it keeps the sun's heat and light equal.
b it keeps the earth's air and water warm.
oc it protects the earth from solar radiation.
d it determines the position of the earth.
nd use

How is france’s culture important to its economy

Which statement about portugal is not true? a. it granted independence to its last colony in 1975 b. it has avoided conflict with spain c. it was a leader in european world exploration in the 1400s d. its economy is changing from agricultural to industrial b. it has avoided conflict with spain

What are canada’s major boundaries?