One of the primary uses for a 500-mb map is: to monitor the position of the polar jet stream. to predict surface wind speeds. to estimate surface air temperature. to determine the speed and direction of motion for a mid-latitude cyclone.

What major factors play a role in global warming? 1. human activity and normal climate conditions 2. natural factors and human activity 3. normal climate conditions and abnormal human activities 4. abnormal human activities and natural factors

Which of the following describes what rocks usually are composed of ,

Residents of moldova are mainly a. russian b. ukrainian c. serbian d. romanian the answer is d. romanian