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Which scientific process caused the depth of the pond water to decrease?
evaporation because the sun beams down on the pond water and dries it up so the amount of water in the pond decreases.
Which body of water is most sensitive to fertilizer runoff?
Pond, because the water is stagnant.
What happens when fertilizer gets into pond?
It would decrease the dissolved oxygen because it would stop the plants from making oxygen.
Which body of water is more sensitive to the effects of fertilizer runoff?
The body of water that is more sensitive to the effects of fertilizer are those with stagnant water. An example of this body of water is a pond.
How does fertilizer running into a pond lower the oxygen level?
The fertilizer causes an increase in algae. As algae die and are decomposed the decomposers increase and use up all of the oxygen in the water.
What is pond weed used for?
fertilizer for plants
What is the role of a heron in a pond ecosystem?
Herons can decimate pond animal populations.
What metric unit can you use for amount of water in a pond?
Litres.
Which change in a sample pond water could indicate that heterotrophic microbes were active?
a decrease in oxygen level
What is the effect of increased nitrate concentration in a fresh water pond on the algal population growth in that pond?
Nitrate is the N in the NPK of fertilizer. Algae is a plant just as grass is. So just as you add fertilizer to get your lawn to grow, an increase of nitrate in a pond will increase the aglal population. (This is the simple answer. Other variables may be what/how many "higher plants" are already in the pond, what is the temperature of the water, and how much sunlight the pond gets. Understand that all the conditions must be there for the algae to grow -- not just the availability of food.) www.rosepond.com
Which effect does a decrease in sunlight have on a pond?
.
Are water lilies good for ponds?
Pond weed does not eat water lilies, but it does require a large amount of oxygen which often chokes the lilies out of the pond.
