Sugars and other compounds to which oxygen has been added in a chemical process

Question

Sugars and other compounds to which oxygen has been added in a chemical process are said to be ______.

synthesized

manufactured

oxidized

reduced

A(n) _____ condition refers to the virtual absence of oxygen that allows debris from dead plants to survive on the floor of a body of water.

anoxic

oxic

dysoxic

static

There was a sharp ______ in CO2 during the later part of the Paleozoic Era beginning in the Devonian Period, resulting mostly from a substantial ______ in weathering rates estimated from continental environments.

decrease; decrease

decrease; increase

increase; decrease

increase; increase

synthesized

manufactured

oxidized

reduced

Explanation / Answer

1. Sugars and other compounds to which oxygen has been added in a chemical process are said to be oxidized.

2. An Anoxic condition refers to the virtual absence of oxygen that allows debris from dead plants to survive on the floor of a body of water.

3. There was a sharp __decrease____ in CO2 during the later part of the Paleozoic Era beginning in the Devonian Period, resulting mostly from a substantial ___increase___ in weathering rates estimated from continental environments.

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