Organic compounds are made up of all except which of the following elements? carbon oxygen hydrogen none of the above
pleease

Oxygen

Explanation: All the organic compounds contain carbon and hydrogen as major elements.

Rest other elements such as sulfur, phosphorous, oxygen and many more elements can be present in organic compounds but its is not mandatory to have any of them.

So, presence of oxygen does not defines that a compound is organic compound.

preservation because he preserves part of the land and preserves means save

explanation:

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.