U.S. Greenhouse Gas Emissions. In the United States, greenhouse gas emissions caused by human activities increased by 7 percent from 1990 to 2014. Since 2005, however, total U.S. greenhouse gas emissions have decreased by 7 percent. Carbon dioxide accounts for most of the nationâs emissions and most of the increase since 1990. Electricity generation is the largest source of greenhouse gas emissions in the United States, followed by transportation.
The phylum Arthropoda (jointed foot) has the largest number of species. In fact, about 85 percent of known species are arthropods, and insects alone make up about 75 percent of known species. Other arthropods include the centipedes and millipedes; the arachnids (spiders, scorpions, ticks, mites); and the crustaceans (barnacles, crabs, crayfish, lobsters, shrimp, water fleas). Obviously,
Answers. Best Answer: Kingdom: Animalia, characteristics include all animals and exclude all plants, fungus, single celled organisms and any of the organisms like bacteria strains and so forth.Phylum: Chordata, includes animals with vertebreas and for some odd reason a few closely related ones without.eport Abuse. Kingdom-Animalia, we're heterotrophic (don't make our own food like plants) and we're multicellular Phylum-Chordata, which is hard to explain but as fetuses we had cartilage that became our spinal cord and so we have a central nervous system Subphylum-Vertebrata, because we have spinal cords.