Scientists Can Use Evidence from Radioisotopes, Air Trapped in Ice

question 36

Short Answer

Scientists can use evidence from radioisotopes, air trapped in ice cores, and pollen trapped deep in lake bottoms to estimate changes in ___________________ over time.

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Definitions:

Public Announcement

An official statement released to the general public from a company or organization.

Responsibilities

Duties or obligations that an individual or entity is bound to perform or uphold, which may be legal, ethical, or moral in nature.

Registration Statement

A document submitted to a regulatory authority, detailing the securities being offered for sale to the public, including financial and management information.

Securities and Exchange Commission

A U.S. federal agency that oversees and enforces federal securities laws to protect investors and maintain fair, orderly, and efficient markets.