Answer:
wait give me a sec, I’m editing my answer
yeah..in my opinio, your right
An intrusion is the action of intruding or intruding. I hope I helped a little!! :-)
Answer:
you must have diversity to have an ecosystem, If you only have one organism that is considered a population.
Explanation:
If you think about the food chain, one species gives it's energy to another. So by having a diversity in species, it allows for an ecosystem to form.
Answer and Explanation:
The use of pesticides and fertilisers leads to soil pollution. These are often not easily biodegradable and so they accumulate in the soil and kill soil organisms. Rain water run-off may carry such chemicals into streams,rivers and lakes. These toxic chemicals can eventually find their way into the tissues of different organisms associated with aquatic ecosystem.
The accumulation of silt due to poor cultivation along the river banks and the destruction of riverine leads to soil erosion. The deposition of silt near the mouth of river makes the water turbid and so impedes the penetration of sunlight. This affects the aquatic organisms and pollute the water.
