Does this passage describe the weather or the climate?
The air pressure has been rising throughout the day in Moscow, Russia.

 - climate
 - weather
Read the text carefully.
The air pressure has been rising throughout the day in Moscow, Russia.
Air pressure is caused by the weight of the air in the atmosphere. When the air pressure is high, the sky is usually clear.
This passage tells you about the air pressure in Moscow today. It describes the atmosphere at a certain place and time. So, this passage describes the weather.