1:How do temperature, humidity, and pressure vary within an air mass? a. Humidity makes the pressure in an air mass increase.
b. Temperature and humidity vary, but pressure does not.
c. Temperature, humidity, and pressure are basically the same all through an air mass.
d. Temperature at the border of an air mass is always higher than in the
middle.

2: Which kind of weather does tropical continental air bring in summer?
a. cool and cloudy
b. hot and cloudy
c. v
d.

The institute of international research is holding its annual convention. this year more than 500 scholars have been invited to hear research reports on many timely topics. approximately 250 big name scientists will be winging their way to washington, d.c. how can the underlined sentence be revised so that it fits the tone of the passage? a) approximately 250 people will be in washington, d.c. b) approximately 250 bigwigs will be flying to washington, d.c. c) approximately 250 science people will be going to washington, d.c. d) approximately 250 well-known scientists will be arriving in washington, d.c.