On topographic maps how do you represent a steep slope?

A steep slope would be represented with contour lines that are closely spaced.

Explanation:

Topographic maps are those that allow detailed interpretation of the relief of a region.

In a topographic map, the information must be accurate, allowing to know, besides the exact location of urban and agricultural areas, native forests, transport ways, water sources and areas of human activity, the altimetric dimensions that represent its relief.

As already said, it is necessary that a topographic map represents everything that is in the relief. If a steep slope is in relief it should be represented with contour lines that are closely spaced.

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.

69 is the correct math for the amino acids