DS From 1956 to 2000, global average temperatures rose an average of 0.13 °C per decade,
which cause of the rising temperatures is the most significant?
O A Rising ocean waters absorb more heat from the sun than the land does
OB. The increasing human population releases more body heat into the atmosphere,
OG Rapidly increasing animal populations release additional greenhouse gases as by products of respiration
D. Emissions from the burning of fossil fuels contain compounds that absorb and retain energy in the atmosphere,

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.