In 1988 there was a survey of giant pandas seen in the wild in china
in 2004 the survey was repeated. there was a 40% increase
the table shows some of the results
year
approximate number of
giant pandas seen
1988
40%
increase
2004
1600
about x giant pandas were seen in 1988
work out the value of x and give your answer to the nearest 100

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.