Geography 3 Marks Question

Answer the following question in about 30 words.
What is the unit used in measuring pressure? Why is the pressure measured at station level reduced to the sea level in preparation of weather maps?

Answer the following question in about 30 words.
What are the geotrophic winds?

Answer the following questions in about 30 words.
While the pressure gradient force is from north to south, i.e. from the subtropical high pressure to the equator in the northern hemisphere, why are the winds north easterlies in the tropics.