Question

our actions can have either a positive or negative impact on the health of the bay. write a plus sign (+) next to each action that would have a positive impact and a minus sign (-) next to each action that would have a negative impact. installing grates on depression and storm drains. creating buffer zones by planting vegetation near waterways. littering. spraying excess fertilizer and pesticides on lawns. recycling plastic containers. creating rooftop gardens. installing additional trash cans and recycling bins in public spaces. factories dumping waste products into rivers and creeks. pouring motor oil in a storm drain. building more parking lots and paved roads. erosion, bare earth and other eroded areas. planting crops year round, rather than leaving fields empty in the winter. humans continue to expand cities and farms in our watershed. briefly explain how these areas negatively affect the health of the chesapeake bay. check! you know youre prepared for the quiz on thursday september 18 (green days) or fri - member 19 (blue days) if you can answer the essential questions and do all the tasks below. essential questions - can you answer all of these big unit questions? what makes a watershed a system, and how do plants, animals, and water work together? how do things like weather and human activities impact a watershed? why is it important to take care of our watersheds, and how can we help protect them? tasks - can you do all of these tasks? i can identify, define and/or draw the parts of a watershed: ridgeline, river system, tributary, flood plain. i can describe the path that water takes from kilmer middle school to the chesapeake bay. i can explain how pollution gets into the chesapeake bay. i can use maps to make inferences about the bay and its health. i can compare point - source pollution and non - point source pollution.

Explanation:

1. Installing grates on drains prevents debris from entering water - ways, positive impact.
2. Planting vegetation near waterways creates buffer zones that filter pollutants, positive.
3. Littering pollutes the environment, negative impact.
4. Excess fertilizers and pesticides runoff can contaminate water, negative.
5. Recycling plastic containers reduces waste pollution, positive.
6. Rooftop gardens can reduce runoff and improve air quality, positive.
7. Installing more trash cans and recycling bins in public spaces helps with waste management, positive.
8. Factories dumping waste products into water bodies pollute water, negative.
9. Pouring motor - oil in storm drains leads to water pollution, negative.
10. Building more parking lots and paved roads increases runoff and reduces infiltration, negative.
11. Erosion and bare earth can lead to sedimentation in water bodies, negative.
12. Planting crops year - round can prevent soil erosion and nutrient runoff, positive.

Expansion of cities and farms negatively impacts the Chesapeake Bay in several ways: Urban expansion with more paved surfaces increases storm - water runoff, carrying pollutants like oil, chemicals, and sediment into the bay. Farm expansion can lead to increased use of fertilizers and pesticides, which can runoff into waterways and cause eutrophication and harm aquatic life.

For the essential questions:

• A watershed is a system as it encompasses all the land and water areas where water drains to a common outlet. Plants help filter water, animals are part of the food - web and also impact water quality through their waste, and water moves through the system via runoff, infiltration, and evaporation.
• Weather can affect the amount and intensity of runoff. Human activities like construction, agriculture, and industrial processes can introduce pollutants, change the landscape, and disrupt the natural water cycle.
• It is important to take care of watersheds as they provide clean water for drinking, support aquatic ecosystems, and are important for recreational activities. We can help protect them by reducing pollution, conserving water, and promoting sustainable land use.

For the tasks:

• The ridge - line is the high ground that separates watersheds. The river system is the network of rivers and streams. A tributary is a smaller stream that flows into a larger one. The flood - plain is the area of land adjacent to a river that is likely to flood.
• The path of water from Kilmer Middle School to the Chesapeake Bay would depend on local topography and drainage patterns, but generally, water would flow through storm drains, local streams, and rivers to the bay.
• Pollution can get into the Chesapeake Bay through point - source pollution (e.g., factories discharging directly into waterways) and non - point source pollution (e.g., runoff from urban and agricultural areas).
• Maps can show land use, water bodies, and elevation, which can be used to infer areas of high pollution risk, flood - prone areas, and areas important for water quality protection.
• Point - source pollution comes from a single, identifiable source like a factory or a sewage treatment plant. Non - point source pollution comes from diffuse sources like urban runoff or agricultural fields.

of how urban and farm expansion negatively impacts the Chesapeake Bay: Urban expansion increases runoff and pollution, farm expansion leads to increased use of fertilizers and pesticides runoff.

Answer:

1. Installing grates on depression and storm drains: +
2. Creating buffer zones by planting vegetation near waterways: +
3. Littering: -
4. Spraying excess fertilizer and pesticides on lawns: -
5. Recycling plastic containers: +
6. Creating rooftop gardens: +
7. Installing additional trash cans and recycling bins in public spaces: +
8. Factories dumping waste products into rivers and creeks: -
9. Pouring motor oil in a storm drain: -
10. Building more parking lots and paved roads: -
11. Erosion, bare earth and other eroded areas: -
12. Planting crops year round, rather than leaving fields empty in the winter: +