  When is ozone considered a pollutant? in the troposphere   How are individual atoms of oxygen formed in the stratosphere? Individual oxygen atoms are formed when UV rays strike oxygen molecules.   How does the absorption of ultraviolet radiation by the ozone layer help sustain life? All of the above are true   The ozone layer helps to sustain terrestrial life by __________. all of the above which of the following is not a grassland - D which of the following organisms is most likely to be found in a grassland - B which of the following plant adaptations protects savanna plants from grazers - D which of the following organisms is not found on the savanna - D which of the following is not a characteristic of the hardy bermuda grass - B fires are important to savanna ecosystems , but not to grassland ecosystems - F which of the following adaptations would be more common to a savanna plant than to a grassland plant - B deciduous forests receive most of their 30 to 60 inches of annual precipitation in the summer - F which of the following is not one of the five zones of the deciduous forest - B which of the following about the copperhead snakes is true - D what adaptation would be seen in the duckbilled platypus - B which of the following adaptations enables deciduous trees to produce more food - A how are the bill and feet of the platypus specially adapted for survival in their environment - B if the number of trees on earth continures to decrease significantly , what might be the result - C deciduous forests receive most of their 30 to 60 inches of annual precipitation in the summer - F which of the following is not one of the five zones of the deciduous forest - B

which of the following about the copperhead snakes is true - D what adaptation would be seen in the duckbilled platypus - B which of the following adaptations enables deciduous trees to produce more food - A how are the bill and feet of the platypus specially adapted for survival in their environment - B if the number of trees on earth continures to decrease significantly , what might be the result - C temperatures in ponds and lakes vary by season - T unlike lakes , the ocean is separated into zones - F understanding the salinity of aquatic environments is unimportant in understanding the overall ecosystem - F which of the following phrases describes a typical river mouth - B which of the following adaptations would be more useful for an animal in a marine biome than for an animal in a freshwater biome - D which of the following adaptations does not help an animal move through the water - B which of the following statements about the first scuba diving suit is true - D which of the following did not allow researchers to further explore below the ocean's surface - C what discovery was made by alvin - B limnetic , profundal , littoral , and benthic have what in common - B which of the following is the best description of the cane toads introduction to australia - B why is it necessary to eliminate absolutely all invasive fire ant colonies - D