Question 28

a is used to accelerate protons in the study of subatomic particles.

a)tevatron

b)termanite

c)technology

d)television

The device is A) Tevatron.

The sub atomic particles of the atom include three components namely, Electron, proton and neutron. To study these particles certain procedures must be utilized.

In order to study and research about the photon, an device called as Tevatron is used which plays a vital role in making the photon to move from its hiding place and accelerates in such a way that it becomes visible and can be studied. The usage of this device is banned due to certain negative effects.

easy

explanation:

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.