Forecasting large-scale weather events several days in advance is ...

[michelleunicorn]

Forecasting large-scale weather events several days in advance is ____.
 A) rarely attempted
  B) generally done with near-perfect accuracy
  C) less accurate than forecasting the precise evolution and movement of small-scale, short-lived weather systems
  D) more accurate than forecasting the precise evolution and movement of small-scale, short-lived weather systems

Question 2

How many degrees did the globe warm in the 20th century? Why is this amount considered significant?

[micaelaswann]

Answer to Question 1

D

Answer to Question 2

Global warming during the 20th century measures 0.6C (about 1F). This is significant compared to temperature changes over thousands of years because global temperatures have not varied by more than 2C during the past 10,000 years.

[michelleunicorn]

Gracias!

[dawsa925]

Excellent