population enviaroment and development are co related with each other. there should be balance between population and environment for the development. If the population of any place is high and the environment is not friendly the developmental processes will not be succed and sustainable.
The wire brush used for cleaning the oven may likely to leave the wire particles which may contaminate the pizza. The wire particles will remain undigested in the food and if sharp enough will peirce the organs of the digestive system.