Which of the following agricultural practices have been primarily responsible for pollution of our water resources 1 use of livestock manure?

Use of chemical fertilisers and excessive use of chemical pesticides are primarly responsible for pollution of our water resources.

Which agricultural practice causes most pollution?

Agricultural operations and practices such as inappropriate water management and irrigation mainly lead to water pollution from surface runoff, both to surface and groundwater.

What are the agricultural sources of water pollution?

What Are the Sources of Water Pollution from Agriculture?

• Industrial Animal Agriculture.
• Industrial Crop Production.
• Algal Blooms, Dead Zones and Acidification.
• Heavy Metal Contamination.
• Nitrates and Other Contaminants in Drinking Water.
• Pathogen Contamination and Disease Outbreaks.

How do agricultural activities cause water pollution?

Most of the farming activities are responsible for water pollution due to excessive use of pesticides and chemical fertilizers, which ultimately leaches in groundwater and drains into surface water bodies—the change in Physico-chemical properties of water due to agricultural activities detriment the aquatic ecosystem.

What is eutrophication How does it pollute water?

Eutrophication is when the environment becomes enriched with nutrients. Fertilisers are often used in farming, sometimes these fertilisers run-off into nearby water causing an increase in nutrient levels. This causes phytoplankton to grow and reproduce more rapidly, resulting in algal blooms.

Which of the following is an indicator of organic water pollution?

Water pollution is commonly indicated by coliform bacteria. They are gram negative, rod shaped, anaerobic bacteria that are present in the intestines of warm blooded vertebrates like birds and mammals. Thus it is also present in the fecal matter and is also transmitted to various water bodies through it.

Which of the following practices produces the most organic water pollution?

Which of the following practices produces the most organic water pollution? Intensive livestock farming.

What practices produces the most organic water pollution?

A Global Review of Water Pollution from Agriculture,’ explains that agriculture, not human settlements or industry, is the biggest source of water pollution. Nitrate from farming is the most common chemical contaminant found in groundwater aquifers.

How does agricultural waste lead to eutrophication?

Agricultural waste is a main cause of this because that waste contains many chemical fertilisers in it which were used before in the fields for plants growth . These fertilisers contain specific amount of nitrogen and phosphorous and when these run off on the surface and joins water source ,they lead to eutrophication.

What is eutrophication in agriculture?

“Eutrophication” is the enrichment of surface waters with plant nutrients. Eutrophication is the process of change from one trophic state to a higher trophic state by the addition of nutrient. Agriculture is a major factor in eutrophication of surface waters.

What is organic water pollution?

Water pollution occurs when a body of water is adversely affected due to the addition of large amounts of materials to the water. Organic Substance — Organic pollution occurs when an excess of organic matter, such as manure or sewage, enters the water. …

What are the main causes of crop pollution in agriculture?

Crop Agriculture Pollution 1 Nitrogen-Based Fertilizers. Nitrogen-based fertilizer has been a major factor driving the industrialization of agriculture in the past century, allowing high yields even on overtaxed land. 2 Nutrient Runoff. 3 Chemical Pesticides.

What are some examples of agricultural contaminants?

A farmer applies fertilizer on a new agricultural crop. Agricultural contaminants commonly studied by the USGS include: pesticides, including herbides, insecticides, and fungicides Agricultural contaminants can impair the quality of surface water and groundwater.

How does agriculture affect the hydrologic system?

Agricultural chemicals move into and through every component of the hydrologic system, including air, soil, soil water, streams, wetlands, and groundwater. Over the last 100 years, agricultural expansion and intensification has led to changes in water quality and the health of stream ecosystems.

What are agagricultural contaminants?

Agricultural contaminants commonly studied by the USGS include: 1 nutrients, such as nitrogen and phosphorus 2 pesticides, including herbides, insecticides, and fungicides More