Answer:
D vulnerable to attack from warring civilizations.
Explanation:
i checked and got it right
Air mass, letter a is the correct one
Answer:
the time of the lowest temperature.
Explanation:
Relative humidity simply talks about the ratio of the quantity of water the air contains at any given time, to the highest quantity of water the air could ever have. So when the water vapor content in air remains constant while the temperature falls, then the relative humidity tends to increase. This phenomenon usually takes place in the morning when the sun is yet to come out and the temperature is usually cooler. When sun peaks, afternoon sets in, the relative humidity then reduces.
