1. What is the only effective way to protect groundwater? a. Prevent contamination.
b. Use advanced sewage treatment.
c. Cover all wells carefully.
d. Treat water from underground sources.

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

Theories basic to all of the life sciences include the germ theory of disease. theory of evolution by natural selection. o two of these answers are correct none of these answers are correct o cell theory.

The pronunciation aid that determines the stress placed upon a syllable is the