Answer:
Answer is in Explanation
Explanation:
You see Ammonites lived during the Devonian Period up until the Cretaceous Period.
However, during the Devonian Period Earth was entirely covered with water, as the first ammonites died the first big extinction the Ordovician-Silurian Extinction occurred and during that time up until the end of the Cretaceous Period or better known as the Cretaceous-Tertiary extinction occurred.
Then came the ice age which froze up a ton of Earth water.
Global warming is when the average temperature of the Earth’s atmosphere and the oceans rise. Greenhouse effect is the retention of the heat by the greenhouses gases on the surface of the Earth, allowing the planet’s temperature to rise.
The correct answer is - A) subsistence farming.
Subsistence farming is the type of farming that is mostly practiced in the less developed countries. In here we have production that is just about enough for the needs of the country (and big portion of the production doesn't even come out on the home market, but you eat what you produce, or trade with someone you know). Also this type of farming is still based on primitive tools and is heavily dependant on the climate, and that makes it very unstable and more often than not people are starving because not enough food has been produced.
Answer:
Statistics contain more than one values . That all values are grouped and kept as a database. Thus in a database , for any operation , we have to do with all the data stored. Thus indivisual values do not constitute statistics
Relic Boundary is the correct answer :)