Engineering Tech Day 8-0

Engineering Tech Day 8-0 DDT became a source of controversy, as people became more aware of all of the problems it caused for humans and the environment. ️true are pesticides used to kill weeds. ️herdecides What kind of methods is used in Integrated Pest Management? ️sterlizing pests One pesticide, called ______, was popular for killing mosquitoes that carried the deadly disease malaria. ️DDT are pesticides used to kill weeds. ️false Pesticides are _______ if they remain in the environment and do not break down. ️persistent What kind of methods is used in Integrated Pest Management? ️Sterilizing pests Insects cannot become pesticide resistant. ️false Pesticides remaining in organisms results in ️bio-accumulation The ladybug is considered a natural predator to other insects. ️true The goal of the Integrated Pest Management system is to ______ the pest population. ️reduce Developing countries often allow a(n) _______ method of farming. ️slash and burn Approximately how large will the world's population be at the end of the 21st century? ️22 billion As the world's population _______, the amount of cropland _______. ️increases,decreases What can be the solution to the world's increased need for food? ️water The slash and burn method of farming is the largest cause of _________________ loss among the world. ️tropical reinforest In less than 100 years from now, the demand for food will triple. ️true