Lakes and Ponds

Which is a way that freshwater wetlands are different from lakes and ponds?

• Wetlands are nesting areas for birds, but lakes and ponds are not

• Wetlands are salty, but lakes and ponds are fresh

• Water flows in lakes and ponds, but never flows in a wetland

• Water does not always cover a wetland, but it does in a lake or pond

True or False: Over time lakes and ponds will fill with sediment and dead organic material until there is no lake or pond left.

• True

• False

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What statement is true about the oxygen levels in a lake or pond over the course of a day?

• Oxygen levels will change depending on the amount of light and temperatures the lake or pond is getting.

• Oxygen levels stay constant

• Oxygen levels will stay high at night and plummet in the daytime.

• The oxygen in a lake or pond will be used up over time until the lake or pond is uninhabitable.

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What part of a lake or pond is the coldest?

• Hypolimnion Zone

• Epilimnion Zone

• Litoral Zone

• Photic Zone

What part of a lake or pond will have the least amount of life?

• Limnetic Zone

• Littoral Zone

• Photic Zone

• Elipon Zone

This sequence of diagrams best illustrates:

• lake and pond succession

• organic evolution

• the effects of acid rain

• a food chain

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How would you describe the ecological succession of a lake or pond?

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At the beginning of a lake or pond succession what would you start with?

• Large deep body of water surrounded by land.

• Grasslands that was once a lake or pond

• Area of water that is very shallow and at times dries out.

• A body of water moving towards the ocean.

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What are key ways to reduce pond succession and pollution?

• Fill your pond with soil and you will not have to worry about pollution anymore.

• Plant very robust plants around the perimeter of your pond and do not allow pesticides or fertilizer to be used within 100 ft.

• Allow cows and horses to graze and produce manure for the pond.

• Cut down all plants and apply fertilizer's and pesticides to the perimeter of the pond.

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Why do plants in lakes and ponds need to have waxy slimy coatings.

• In case the pond or lake dries up the plant will be able to survive drought.

• The plant needs to be able to resist predators.

• The plant needs to be able to repel water and bugs.

• the plants need to be able to attract animals and insects to protect it.