In this GCSE Biology revision video our GCSE biology tutor discusses: Measuring Environmental Changes
Pollution mostly caused by humans affects the environment. Main types of pollution caused by human activities are air and water pollution. Air becomes polluted when Humans burn coals, natural gases and oil and thereby Sulphur dioxide leads to Acid rain which damages the environment. The amount of acid rain in a particular area is determined by a moss, Lichen. Water pollution is caused by chemicals. The level of water pollution is determined by its wildlife. Rainfall and temperature are two parameters used by scientists to measure the environmental change.
Here you can makes notes on this video or read them back later.