Question

Which statement describes a climate condition?

An ice storm is expected anytime.
A cold front is approaching the city next week.
A dense fog advisory has been issued in the region.
A change in wind pattern has been observed over last 30 years.

Answer 1

A change in wind pattern has been observed over the last 30 years

Answer 2

D. A change in wind pattern has been observed over the past 30 years.  This is because climate is over a long period of time, and so is this answer.