Y=4 and x=6 to find the answers you make the equations equal to each other so you would do 4x-7=2x+5 and 5y-6=y+10 and you would solve
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a) <u>TWO important causes for the variation in the temperature and/or salinity of an estuary as follows:</u>
Salinity will vary hourly, because of the tides. Temperature will vary depending on the time of year. Solar radiation, different in winter than in summer, changes the temperature.
b) <u>TWO roles that coastal wetlands play Ecologically</u>
- they provide a habitat for various wildlife
- provide nutrient cycling, or soak up excess nutrients.
<u>TWO roles that wetlands play Economically</u>
- they provide a location for fishing and other sources of recreation
- reduce flooding and erosion.
c) <u>THREE ways in which humans have had a negative impact on or have degraded coastal wetlands as follows:</u>
- They have removed wetlands for agricultural purposes
- more use of groundwater, which reduces the balance of the ecosystem
- have water pollution, plants harvest, and birds hunt.
d) Overused groundwater can be reduced by charging user fees to those who use it, as well as increasing the number of wildlife refugees, which will restrict available land for groundwater use.
<u>Explanation:</u>
Estuary is a land form that formed in the lower course of a river where river enters into the sea. Here temperature and salinity varies with solar radiation as the intensity of sun rays different season wise. During the time of tides salinity level does fluctuate.
Wetland is a very important feature of environment. It is also known as the kidney of environment and it acts as a natural habitat for the animals and economically important zone for the fishing. It is also a recreation zone. With increasing population over burden on agricultural land enhances adversities on environment.
Answer:
These lines are called lines of longitudes.
Explanation:
There is a difference between longitudes and lines of longitudes.
- Longitude: It is the angular distance from one point location to another point location on the globe.This angular distance is measured with the help of lines of longitudes.
- Lines of longitudes: These are imaginary lines that run around the Earth vertically (up and down) and meet at the North and South Poles. These lines are also termed as meridians. The Prime Meridian is located at 0° and the lines of longitude run east and west of Prime Meridian. There are 360 longitudes in total (180 east and 180 west of Prime Meridian). Further, all longitudes are also great circles.
Learn more:
- The importance of latitude and longitude brainly.com/question/11436219
- Latitude and longitude of clifden ireland brainly.com/question/12449677
Keywords: longitude, lines of longitude, Prime Meridian, North Pole, South Pole
