petrified fossils -> date sedimentary rocks, this will be more precise but Carbon 24 dating would probably a very reliable way of gathering information too
The heat generated in response to food ingestion is called thermogenesis (the production of thermal energy). <span>During the ingestion, the chemical energy stored in the food can be converted to thermal energy because our body produces heat when digesting our food.</span>
Answer:The polar climate regions are characterized by a lack of warm summers. Every month in a polar climate has an average temperature of less than 10 °C (50 °F). Regions with polar climate cover more than 20% of the Earth's area.
Explanation:
https://en.wikipedia.org/wiki/Polar_climate
you may search this link
Answer:
False
Explanation:
Most scientists were not yet concerned about global warming. This was because the major issue during the period between 1940 and 1970 was global cooling with little or no attention on global warming.
However things started to change due to more pollution as a result of technological advances. Global warming started becoming a concern between 1970s and 1990s because of the increase in steady surface temperature.