Answer:
Subsistence agriculture occurs when farmers grow food crops to meet the needs of themselves and their families on smallholdings.
Answer: I Have to say Colorado.
Explanation: Because 1, I heard on the Radio that their drought levels were through the roof. And maybe(This is just me), since they have a lot of Snow, the Snow sucks up water like a sponge, and compacts. Making it more difficult to get water.
The fossil of the dinosaur is older because it is deeper than the fossil of the mammal in the soil.
Answer:
Regardless of its name, the Big Bang theory found widespread acceptance for its unparalleled ability to explain what we see. The balance of light with particles like protons and neutrons during the first 3 minutes, for instance, let early elements form at a rate predicting the current amounts of helium and other light atoms.
"There was a small window in time where it was possible for nuclei to form," said Glennys Farrar, a cosmologist at New York University. "After that, the universe kept expanding and they couldn't find each other, and before [the window] it was too hot."
A cloudy plasma filled the universe for the next 378,000 years, until further cooling let electrons and protons form neutral hydrogen atoms, and the fog cleared. The light emitted during this process, which has since stretched into microwaves, is the earliest known object researchers can study directly. Known as the cosmic microwave background (CMB) radiation, many researchers consider it the strongest evidence for the Big Bang.
