Coral reefs<span> are also being degraded by many other factors. The list of problems can seem endless: overfishing, fishing using cyanide and dynamite, pollution from sewage and agriculture, massive outbreaks of predatory starfish, invasive species, and sedimentation from poor land use practices</span>
Explanation:
(a) Silicosis is a situation in which the person work in stone grinding industries, they tend to inhale the crystalline silica dust, which is also a part of sand and rock. It affects the human lungs and can cause lung fibrosis.
(b) Benzoates, Nitrates, sulphites are the food preservatives chemicals which are used mostly in food preparation so that it can be stored for long period. These chemicals are harmful for human and can cause disease in the human. They can cause severe asthma in humans. The international agency for the research of cancer has reviewed ingested nitrates and nitrites are probably carcinogenic to humans.
(c) Industrial pollution cause water and soil pollution. Industrial pollution is the release of wastes and pollutants generated by the industrial activities into the natural environmental including air, water and sand. It causes chronic health problems. Polluted air cause lung related issue and polluted water causes abdominal pain, diarrhea in humans
there is less energy on the 5th level, the less the energy, the smaller the food chain
