Answer:
Nov 23, 2020 · Levels of carbon dioxide (CO2) in the atmosphere hit a new record of 410.5 parts per million in 2019, and are expected to keep rising this year, the World Meteorological Organization (WMO) said in its annual Greenhouse Gas Bulletin on Monday. “We breached the global threshold of 400 parts per million in 2015.
Explanation:
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Answer:
B. Rotations of Earth
Explanation:
The Earth's rotations create both ocean currents and atmospheric movement (wind). This is called the Coriolis force.
They use eras to divide the geological time scale.
Uncontaminated. it allows researchers or forensics to compare it with another sample
