You will hear a short lecture. Write a summary for a fellow student who was not present at the lecture. You should write 50 – 70 words. You have 10 minutes to finish this task. Your response will be judged on the quality of your writing and on how well your response presents the key points presented in the lecture.
According to the Doctor Johnson’s research, commenced 20 years ago, there is an estimation of over one thousand chemicals that can harm the development of a brain. Chemical pollution can decrease the IQ points and concentration span in each child which is negatively correlated to the motor and memory function of the brain, costing the society more than 8000 per IQ point lost.