Answer:
My Guess is Urban centers are rapidly expanding in most regions of the world.
Explanation:
It makes the most sense, because Most of the worlds population is in big cities.
C, it’s global warming . Temperatures start to rise . Oceans get warmer as well.
A no-discharge zone restricts the use of Type One and Two Marine Sanitation DevicesThese areas require greater environmental protection. Any sewage discharge in this area can be very harmful to the environment, including the flora and fauna of the zone.
Travel by bubble might seem more appropriate for witches in Oz, but two physicists suggest that a future spaceship could fold a space-time bubble around itself to travel faster than the speed of light.
We're talking about the very distant future, of course.
The idea involves manipulating dark energy — the mysterious force behind the universe's ongoing expansion — to propel a spaceship forward without breaking the laws of physics.er: