<span>Judaism, Christianity, and Islam were all founded in Europe and southwest Asia.</span>
The Incas developed resilient varieties of crops such as
potatoes and corn. The system of terraces at the height of Incan civilization
in the 1400s covered about one million hectares. The Spanish imposed their own
crops and over the centuries, canal beds dried up and the locals abandoned the
terraces.
According to some researchers, the Spanish conquest left as many as
half of the Incan population dead and much of the traditional knowledge for
farming was lost.
However, the ghosts of Incan farming achievements still
follow the Andes. In the corner of the Andes, the local population is breathing
new life into Incan’s ancient practice. They are rebuilding irrigation systems
like terraces and reclaiming the old traditional methods of planting crops.
An archeologist,
Ann Kendall, in the 1968 began to study on Incan architecture and artwork. She
thought about how the local people had no water and over the years learned how
Incan builders employed stones to create the best structures for water drainage
and retention systems.
She used that and over the past three decades she formed
Cusichaca Trust. Cusichaca Trust helped rehabilitate and irrigate 160ha of
terraces in the Petacancha valley. Till today, lessons from this valley are now
employed to restore Incan agricultural systems.
Answer:
Sections of Earth's continents are in slow, constant movement.
Explanation:
Earth's crust is broken up and divided into numerous pieces. These pieces are called tectonic plates and they come in various shapes and sizes. The tectonic plates can consist predominantly of continental crust or predominantly of oceanic crust, and there isn't a single plate that is exclusively made out just from one type of crust.
The reason why Earth's crust is broken apart is the force that comes from the convection currents from the mantle below it. Not just that the convection currents break up the crust, but they also push it in a certain direction. By doing so, the convection currents manage to move the tectonic plates on Earth's surface, and even though this is a slow movement, it has huge effects.
Answer:
I would say climate change. Though the sun is getting larger, therefore Earth is getting warmer, we can reduce greenhouse gases in the atmosphere in order to reduce Earth's temperature. I selected this issue because at one point, if we do not stop increasing the heat on Earth, it will eventually be so hot we cannot grow crops or plants, leading to Earth's oxygen levels to significantly drop. A way to reduce global warming is to stop burning fossil fuels. This would be a good solution because burning fossil fuels, like other gases, will heat up Earth's atmosphere.
Much of Earth's water is thought to have come from asteroids impacting the planet early in its history. Image via NASA/Don Davis. The surface of the very young Earth was initially an ocean of magma. Hydrogen and noble gases from the solar nebula were drawn to the planetary embryo, forming the first atmosphere.
