Which of the following is the best example of a secondary source?
a. the diary of anne frank
b. a text book discussing the causes of wwii
c. a photo featuring a farmer collecting his crop
d. a television interview with a person who survived hurricane katrina

Option B

Explanation:

A historical research project, secondary sources can be defined generally as scholarly books and articles.

This sources first analyses and interprets the primary sources. These sources contains pictures, graphics and quotes.

A secondary source is usually used to describe an event or incident with the help of picture, quotes and graphics.

hence, the correct answer is option B

allowed for the prediction of the properties of missing elements.

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.