Question

Question 13 1 pts Carbon Dioxide (CO2) - Nitrous Oxide (N2O) — Methane (CH) CO2 (ppm), N20 (parts per billion) CH4 (parts per billion) 250 0 500 1000 Year 1500 - 600 2000 The figure above provides information about the increase in atmospheric concentrations of carbon dioxide, nitrous oxide, and methane. Because of the importance of increased amounts of these gases, scientists predict biological magnification global warming depletion of the ozone layer increases in biodiversity

Answer 1

Answer: Global warming.

Gases shown in the graph are carbon dioxide, methane and nitrous oxide, and these are main green house gases. Their increase in atmospheric concentration casuses temperature to rise higher, thus causing warming.

From the increase in amounts of these gases , scientist will predict global warming.

Biological magnification is accumulation of toxic materials in the trophic level, it goes on increasing with the higher trophic level. These toxic materials are very slowly metabolized or excreted out and are dangerous for the animals.

Depletion of Ozone layer is primarily due to increase in CFCs, CCl​4 , halons, methyl chloroform, methyl bromide.

Increase in the concentration of green house gases adversely affect the biodiversity. Increased temperature will interfere with the normal physiology of plants and animals, hence depleting the biodiversity. Indiscriminate increase in these gases will affect or decrease the biodiversity and will not increase them .