Question: You are presented with the question "What has caused harm to the bird population?" and the following answer choices: - feral dogs - migration - habitait loss - amoebae - hypothyroidism - fuel emmisions - Pesticides - viruses Now knowing that harming an animal species causes that animal 's population to decrease and habitat loss is the major reason for the decrease in the bird population, choose the best answer.
Answer: habitait loss

Question: You are presented with the question "what does rock erosion cause them to do?" and the following answer choices: - turn gaseous - secrete h2o - breakdown - become hydrogen - they bend - dangerous - migrate - watershred Now knowing that soil is formed by rocks eroding and soils are formed by breakdown of rock, choose the best answer.
Answer: breakdown

Question: You are presented with the question "The vanes rotating in an electric fan causes" and the following answer choices: - sound - heat - wind - current - motion - speed - Lift - vibration Now knowing that the vanes rotating in an electric fan causes air to move and all wind is simply air moving, choose the best answer.
Answer:
wind