I need help on this question:
29. A common feature of thermal pollution and artificial eutrophication is that they both
a. have sources that are difficult to identify and control
b. cause large mats of algae to bloom in fresh water
c. are a result of power plants and other industrial activity
d. decrease the amount of oxygen dissolved in water

'...Eutrophication caused by humans is called artificial eutrophication. Fertilizer from farms, lawns, and gardens is the largest source of nutrients that cause artificial eutrophication. Phosphates in some laundry and dish washing detergents are another major cause of eutrophication. Phosphorus is a plant nutrient that can cause the excessive growth of algae. In bodies of water polluted by phosphorus, algae can form large floating mats, called algal blooms. As the algae die and decompose, most of the dissolved oxygen is used and fish and other organisms suffocate in the oxygen-depleted water.

...When the temperature of a body of water, such as a lake or stream increases, thermal pollution can result. thermal pollution can occur when power plants and other industries use water in their cooling systems and then discharge the warm water into a lake or river. thermal pollution can cause large fish kills if he discharged water is too warm for the fish to survive. But most thermal pollution is more subtle. If the temperature of a body of water rises even a few degrees, the amount of oxygen the water can hold decreases significantly. As oxygen level drop, aquatic organisms may suffocate and die. If the flow of warm water into a lake or stream is constant, it may cause the total disruption of an aquatic ecosystem.'

hold on, i think i got it. is it D?

  1. 👍
  2. 👎
  3. 👁
  1. sorry about that.

    This is a repost from yesterday. I didn't get an answer to this.

    Can someone please help me, please ?!

    1. 👍
    2. 👎
  2. Check this definition, reread the above paragraphs, and then tell us what you think.


    1. 👍
    2. 👎
  3. The answer is D

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science Unit test

    Which statement correctly describes the relationship between thermal energy and particle movement? A. As thermal energy increases, there is less particle movement B. As thermal energy increases, it is not possible to predict

  2. Environmental Science

    1. Decibel is a measurement of the amount of pollution (True or False) 2. Non-Point-Source pollution can be traced to one specific source (True or False) 3. Point-Source pollution is pollution that comes from identifiable

  3. Science

    How are temperature and thermal energy related A) Temperature and thermal energy both measure the total kinetic energy in an object. B) Temperature is one factor that determines the thermal energy of an object C) Thermal energy is

  4. Physics

    Artificial gravity. One way to create artificial gravity in a space station is to spin it. If a cylindrical space station 325 m in diameter is to spin about its central axis, at how many revolutions per minute (rpm) must it turn

  1. Environmental Science

    I need help on this question: 29. A common feature of thermal pollution and artificial eutrophication is that they both a. have sources that are difficult to identify and control b. cause large mats of algae to bloom in fresh

  2. Maths - Reciprocals

    1. Give an example of a quadtratic whose recirpocal has no vertical asymptotes Ans. y = x^2 - 2x + 3 2. Compare the vertex (or turning point) of the quadratic and the corresponding feature of the reciprocal. Write down your

  3. Econ MC

    Two firms, A and B, each currently dump 50 tons of chemicals into the local river. The government has decided to reduce the pollution and from now on will require a pollution permit for each ton of pollution dumped into the river.

  4. ss

    Which is an effect of deforestation? A. soil erosion B. air pollution C. water pollution D. earthquakes

  1. Science

    Which of the following statements is true about natural selection and artificial selection? A. Traits that make an organism more beneficial to humans are favored during artificial selection. B. Males and females mate and produce

  2. Science Help

    Which of the following is not a goal of the clean water act? A. Controlling water pollution from point sources B. Encouraging voluntary cooperation by citizens related to nonpoint sources of pollution. C. Educating citizens about

  3. Help!

    Geothermal power would be classified as a(n) _____________________ resource because its supply will not run out. An example of a renewable and inexhaustible resource that requires the construction of dams is

  4. chem please help drbob222

    Two objects A and B have the same mass and the same specific heat. Object A is heated from 30°C to 70°C and object B is cooled from 70°C to 30°C. How are the thermal energies of the two objects related after the temperature

You can view more similar questions or ask a new question.