Environmental Science
Infrared and visible satellite images might provide:

A way of distinguishing between wet and dry clouds.
A way of determining cloud thickness and altitude.
A way of distinguishing between "new" and "old" clouds.
A way of identifying clouds suitable for cloud seeding.

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
During the winter solstice in the Northern Hemisphere:

Astronomical winter begins in the Northern Hemisphere
The noon sun is overhead at 23.5o S latitude
All of these
At middle latitudes in the Northern Hemisphere, this marks the longest night of the year

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
The atmospheric greenhouse effect is produced mainly by the:

Absorption and re-emission of visible light by the atmosphere
Absorption and re-emission of infrared radiation by the atmosphere
Absorption and re-emission of visible light by clouds
Absorption and re-emission of ultraviolet radiation by the atmosphere
Absorption and re-emission of visible light by the ground

ANSWER DOWNLOAD EXAMIANS APP