SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It can increase the ability of many species to find suitable habitats.
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It can cause pollution of water in lakes and rivers.
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It can cause an increase in greenhouse gases.
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It can reduce the amount of sediment in the local waterways.
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Detailed explanation-1: -Fertilizers are made of nutrients, such as nitrogen and phosphorus. When it rains, these nutrients are carried by storm-water into the nearest stream, river, or other water body. Too many nutrients in water can cause algae to grow, which uses up the oxygen in the water.
Detailed explanation-2: -Fertilization may affect the accumulation of heavy metals in soil and plant system. Plants absorb the fertilizers through the soil, they can enter the food chain. Thus, fertilization leads to water, soil and air pollution.
Detailed explanation-3: -Fertilizers contain high levels of nitrogen and phosphorus, which can lead to oxygen depletion, overgrowth of vegetation, and fish kills. In order to protect wildlife and aquatic species from pesticides, herbicides, and fertilizers that pollute our waters, buffer zones need to be enforced.
Detailed explanation-4: -Major agricultural contributors to water pollution (and the main targets for water-pollution control) are nutrients, pesticides, salts, sediments, organic carbon, pathogens, metals and drug residues.