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Outline the process of eutrophication

Eutrophication occurs when nitrate fertilisers are carried by ground water into lakes and ponds. The fertliser encourages algal growth in the water, which in turn blocks out sunlight. This causes submerge...

Answered by India G. • Biology tutor

5152 Views

Coal is a fossil fuel and in constant debates for its negative impacts on the environment. Which elements does it consist of and which products are being formed when it is burned? Give two examples for the effects on the environment.

(a) Coal contains Carbon (80%) Sulfur (9%) Oxygen (5%) Hydrogen (1%) other elements (5%) (b) Carbondioxide (CO2) Sulfurdioxide (SO2) Water (H2O) (c) Carbon dioxide: Global warming (green house effect) ...

Answered by Thea P. • Chemistry tutor

2644 Views

Bill's Diner is an American burger restaurant. There is an increase in import costs of products needed from America, and change in perceptions of fast food such as burgers, due to an increase in health warnings. Discuss the effects on the market. (6)

A decrease in supply (1) A decrease in demand (1) A reduction in overall market quantity (1) An indeterminable effect on price (1) Effect will depend upon relative size of the shifts (1) and the price ela...

Answered by Daanial C. • Economics tutor

1975 Views

How can I describe a sentence?

Declaritive - to declare something Imperative - to demand Interrogative - to question, indicated via a question mark '?' Exclamative - to exclaim, indicated via an exclaimation mark '!' Rhetorical questio...

Answered by Kelly C. • English tutor

3187 Views

Why is a percentage yield never 100%?

There are a few reasons why percentage yield will never be 100%. This could be because other, unexpected reactions occur which don't produce the desired product, not all of the reactants are used in the r...

Answered by Alex B. • Chemistry tutor

56821 Views