Causes of eutrophication:
The main causes of eutrophication are
natural run-off of nutrients from the soil and the weathering of rocks
run-off of inorganic fertiliser (containing nitrates and phosphates)
run-off of manure from farms (containing nitrates, phosphates and ammonia)
run-off from erosion (following mining, construction work or poor land use)
discharge of detergents (containing phosphates)
discharge of partially treated or untreated sewage (containing nitrates and phosphates)
In most freshwater lakes the limiting nutrient is phosphorus, so an input of phosphorus in the form of phosphate ions (PO43-) results in an increase in biological activity.
Answer:
Tools for creating simple infographics and data visualizations. Piktochart. Piktochart is a web-based tool that has six decent free themes (and a whole bunch more for the paid version) for creating simple visualizations. Easel.ly. Easel.ly is another free web-based tool for creating infographics. Visual.ly. Tableau.
Answer:
Julie spent Saturday morning cleaning her room, playing with her little brother, and walking the dog.
Hope this helped!
Answer:
There are a number of different reasons that make 16 year olds unsafe drivers and increase their chances of being involved in a fatal car crash. ... Teens often drive after dark and with other teens in the car. This can cause serious distractions and make it difficult to use all of the senses needed to be a safe driver.
hope this helps <3
Answer:
A!
Explanation:
As you can see the elephant is swinging its trunk in the present time. In order for anything to be present, you may add an s to it. The second one is incorrect because it does not match the subject-verb agreement.
Hope this helps.
