Which statement best describes how waves impact beaches? question options: (a) beaches change over time as waves move further up the shore. (b) beaches are always changing due to factors such as waves adding and eroding sand. (c) beaches change little over time as waves follow the same patterns year after year. (d) beaches change little over time as wind patterns stay the same.

seeing as erosion in this topic i believe the answer would be B) Beaches are always changing due to factors such as waves adding and eroding sand.

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

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.