Froggy Jumps Ecotoxicology history and "definistions"Version en ligne Ecotoxicology some history and some definitions par Biology 1 What does human toxicology study? a How chemicals affect human health b How chemicals affect ecosystems c How pollutants move through air and water 2 What does environmental toxicology focus on? a How chemicals affect human organs b How chemicals affect specific animal species c How chemicals behave in soil, water and air 3 What does ecotoxicology study? a The effects of chemicals on ecosystems and non-human organisms. b The effects of plastic wastes in water c The movement of pollutants in the atmosphere 4 What environmental issues revealed harm from DDT? a Poisoning in fish b Eggshell thinning and bird popultion declines c Oil spills harming marine mammals. 5 What caused the Minamata disaster? a Industrial mercury contamination b Excessive pesticide spraying? c Accidental oil release from a refinery 6 What was Rachel Carson's main message in "Silent Spring"? a Overfishing was collapring food webs b Industrial waste was damaging coral reefs c Chemicals were harming ecosustems and would eventually harm humans 7 Who introduced the term "ecotoxicology"? a Rachel Carson b Paul Müller c Renè Truhaut 8 Why did ecotoxicology develop as a field? a Scientists needed faster medical testing b Human toxicology couldn't explain ecosystem-level effects c Wildlife populations were increasing too quickly 9 Why are international chemical agreements important? a Pollutants travel across borders and affect multiple countries b To decide where endangered species live c To help companies sell more pesticides 10 What triggered the Minamat Convention? a Pesticides harming bird populations b Plastic waste accumulating in oceans c Mercury poisoning affecting humans and wildlife in Japan 11 What is contamination? a A substance causing proven harm b A substance that is biodegradable c A substance found where it shouldn't be 12 What is pollution? a A contaminant present at harmful levels b A harmless background chemical c A natural process in soil formation 13 Which statement is correct? a A pollutant is always a contaminant not the other way around b A contaminant is always a pollutant not the other way around c Contaminants can never harm ecosystems
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