Lack of family planning is responsible for the rise of population. It brought many adverse changes in the environment such as pollution, crimes and overcrowding etc. Rise in population causes unemployment that leads to crimes in the society. It also produces pollution due to more human activities such as emission of fossil fuels and more industries should be built to provide basic needs to more population. Rise in population causes agricultural to be converted into residential area that leads to decrease food production.
Animal plays important role in angiosperm reproduction either by visiting flowers for the process of pollination or eating fruits which aids in continuation of generation