First of all, it makes algae grow, because pesticides and stuff provide too many nutrients. Algae needs a lot of oxygen and so the fish begin to die off because the algae is taking all the oxygen out of the lake. Next, it causes biodiversity to drop, meaning that species are beginning to get less varied. Water pollution harms the lakes and is a concern because the effects of it on species and the water will stay.
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The correct strategy for training for a specific running distance is to periodically (once a week or so) run that distance as a training run. This is what runners will refer to as a weekly 'long run'. This allows your body to adapt to the greater distance. At the same time, it is important that these long distances are interspersed with shorter and faster runs, as running long distances constantly can cause chronic injuries and tends to make runners slower.
<u>At Mount St. Helens, erosion cut through the new volcanic deposits and exposed soil where plants could sprout. Thus in this disturbance, erosion was a positive process for plants, improving habitat. Lakes, streams, and forests responded at different rates after the 1980 eruption.</u>
<em><u>I</u></em><em><u> </u></em><em><u>think</u></em><em><u> </u></em><em><u>its</u></em><em><u> </u></em><em><u>helpful</u></em><em><u> </u></em><em><u>to</u></em><em><u> </u></em><em><u>you</u></em><em><u> </u></em><u>☺</u>
<span>The greenhouse effect is when radiation from a planet's atmosphere warms the planet's surface to a temperature higher than what it would be without its atmosphere. If a planet's atmosphere has radiatively active gases the atmosphere will radiate energy everywhere</span>