Adissolved oxygen meter important to monitoring the health of a local pond because
a) aquatic life cannot survive in water that is too warm.
b) anaerobic conditions are unsuitable for most aquatic life.
c) most plants and fish need a low level of turbidity to survive.
d) the dissolved oxygen meter is an effective tool in detecting changes in ph.

B) anaerobic conditions are unsuitable for most aquatic life.

Explanation:

Dissolved oxygen (DO) is crucial to the survival of pond life and each aquatic organism, has a specific requirement for oxygen. Some aquatic plants and algae, both use and add to the DO in the water; additionally, oxygen enters water by diffusing across its surface of water from the atmosphere- microbial and animal life also require significant amounts of Dissolved Oxygen. Anaerobic conditions, are devoid of oxygen, and may result in significant death in the pond community this could be prevented by using a DO meter to moniter the health of the pond.