Write the contrapositive of each of the following statements. Healthy plant growth follows from sufficient water. Increased availability of information is a necessary condition for further technological advances. Errors were introduced only if there was a modification of the program. Fuel savings implies good insulation or storm windows throughout.

Healthy plant growth follows from sufficient water.

Contrapositive: If water is insufficient, then there isn't healthy plant growth

Increased availability of information is a necessary condition for further technological advances

Contrapositive: Absence of further technological advances implies decreased availability of information.

Errors were introduced only if there was a modification of the program.

Contrapositive: If there wasn't any modification of the program then error was not introduced into the program

Fuel savings implies good insulation or storm windows throughout.

Contrapositive: The absence of good insulation or storm windows throughout implies that there is no fuel savings.

Explanation:

A contrapositive statement is formed from a conditional statement as we can see from the answers above.

In a contrapositive statement, we just interchange the hypothesis and the conclusion of the inverse statement.

This implies that, when the converse of the statement is true, then the inverse of the statement is also logically true.