How might xenoliths help geologists understand earth interior? please answers guys

Some plants release toxic chemicals that kill or harm nearby plants. what type of example is this? 1 cooperation 2.mutualism 3.competition or 4.parasitism

Which of the following best explains the changes in biodiversity shown in the graph?

What are the three goals of integrated pest management (ipm)? what are the three goals of integrated pest management (ipm)? a) to reduce the use of insecticides, increase consumer costs, and conserve water b) to reduce the use of insecticides, increase farmer costs, and conserve water c) to reduce the use of artificial pesticides, reduce costs, and control pests d) to reduce the use of artificial pesticides, reduce costs, and increase salinization