Suffictient labor force. Markedtable population. Innovation and transportation communication and logistics. Capital and investments. Natural ressources
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:
To survive they have made modified leaves into spines to prevent excessive loss of water from the plant body and deep roots to get to a water source.
Physical processes are the natural forces that change earths features.
Answer:
The sun
Explanation:
“Approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula. With the rise of the sun, the remaining material began to clump together.“
