Which of following is an example of how culture can humans survive?

The invention of farming helps feed large population of humans.  

Explanation:

Ensuring the availability of food is essential for the survival of humans. In the earlier period of human evolution humans were hunter gatherers. They hunted wild animals and gathered edible forest products for food.

Discovery of agriculture brought changes to the hunting and gathering culture.  

Like several discoveries agriculture became a landmark discovery in the history of humankind. Crops like peas, lentils and barley were cultivated first when humans started farming for the first time.  

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.