The diagram shows the sun’s interior. convection currents are present in the convection zone. which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents. urgent 16 points!

The correct answer is that they become denser in the outer part of the convection currents.  

The interior of the Sun can be differentiated into three regions, on the basis of the kind of conduction of energy that is in action. These are the core, the radiative zone, and the convection zone.  

The convection zone refers to the uppermost layer of the interior. It elongates from a height of 200000 kilometers to the visible surface of the Sun. The energy is conducted by the process of convection in this area. The photons of light are created on the surface of the convection zone, that is, why this uppermost layer is also known as the photosphere.  

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.