NEET BIOLOGY

Detailed explanation-1: -Human development and activity leads to pollution (such as point source, non-point source, and noise pollution) and physical modifications (such as changes to beaches, shores and rivers). In addition, humans have removed most of the large vertebrates from the ocean.

Detailed explanation-2: -Impacts from human activity on land and in the water can influence ecosystems profoundly. Climate change, ocean acidification, permafrost melting, habitat loss, eutrophication, stormwater runoff, air pollution, contaminants, and invasive species are among many problems facing ecosystems.

Detailed explanation-3: -Habitat disturbance is destruction of the home of the wild animals. Humans kill or chase wild animals by digging, cutting, sealing by stones and smoking their natural habitat. This method is a main cause to decrease or to extinct of wild animals.

Detailed explanation-4: -These include light availability, oxygen levels, water movement, salinity, density and pH. These conditions often vary from habitat to habitat and will either support or limit the life processes of the marine organisms living there.