Midterm Exam

Front

What is the pH level of an acid?

Back

A substance with a pH of less than 7 is considered an acid.

Front

What happens to the density of water as the temperature increases?

Back

Higher temperature leads to lower density.

Front

How does the density of ice compare to that of liquid water?

Back

Ice is less dense than liquid water.

Front

What type of ecological pyramid represents the biomass of organisms?

Back

Biomass pyramid.

Front

What is a spring tide?

Back

A spring tide occurs when the Earth, Moon, and Sun are in a straight line, resulting in the largest tidal range.

Front

What is the pH level of a neutral substance?

Back

A neutral substance has a pH of 7.

Front

What is the relationship between temperature and density in liquids?

Back

In general, as temperature increases, the density of liquids decreases.

Front

What is the significance of the new and full moon in tidal patterns?

Back

They are associated with spring tides, which have the largest tidal range.

Front

What is the definition of an ecological pyramid?

Back

An ecological pyramid is a graphical representation showing the distribution of biomass, numbers, or energy among trophic levels.

Front

What is the effect of salinity on the density of water?

Back

Higher salinity increases the density of water.