It is when whatever you are doing lasts half the time that it would normally take.
I believe the answer is: Cyclones.
Cyclones happen when a mass of air rotates on strong center within the low atmospheric pressure.
This mass of air is often accompanied by thunderstorms and could be originated from both tropical or subtropical waters.
Answer:
The Byzantine Empire had control over the Holy Land in 550 CE.
Explanation:
Wodiczko’s video installations commented on the social
injustice. This was one of the main themes in the works of this celebrated
Polish artist who was known for the practice he called Interrogative design. With his Interrogative design which combines technology
with art he wanted to raise awareness of the social problems that plagued
the people across the world.