Which of the following is a type of water pollution caused by leaded gas, the production of some pesticides, and burning garbage?(1 point)
Responses
algae
algae
dioxins
dioxins
mercury
mercury
pathogens
pathogens
lead
Which of the following does water pollution affect: surface water, groundwater, or ocean water?(1 point)
Responses
Pollution affects surface water and groundwater only.
Pollution affects surface water and groundwater only.
Pollution affects groundwater and ocean water only.
Pollution affects groundwater and ocean water only.
Pollution affects surface water and ocean water only.
Pollution affects surface water and ocean water only.
Pollution affects surface water, groundwater, and ocean water.
Pollution affects surface water, groundwater, and ocean water.
Which of the following is an example of nonpoint source pollution?(1 point)
Responses
a leaking gas line
a leaking gas line
an oil spill
an oil spill
stormwater runoff
stormwater runoff
industrial discharge
industrial discharge
stormwater runoff
The correct answer is lead.
Leaded gas, the production of some pesticides, and burning garbage are all sources of lead pollution in water. Lead is a toxic metal that can enter water sources through various means. Leaded gas was commonly used in vehicles in the past, and it can contaminate water through runoff from roads. Some pesticides also contain lead, which can seep into the soil and eventually make its way into water sources. Burning garbage, especially if it contains materials with lead, can release lead particles into the air, which can then settle into water bodies through precipitation or direct deposit.
Lead pollution in water is a serious issue as it can have detrimental effects on human health, particularly on the nervous system, brain development, and overall cognitive function. It can also impact aquatic ecosystems and harm various organisms. Therefore, it is important to reduce and eliminate sources of lead pollution to protect both human and environmental health.