A human baby is born with two X chromosome what must be true about this baby

The baby will be female.

Explanation:

There are two chromosomes, X and Y. If a baby is born with two X chromosomes, the baby will be female. If a baby has one X chromosome and one Y chromosome, the baby will be male.

These will be in the 23rd pair of chromosomes, or the sex chromosomes. There are also conditions in offspring where a baby will be born with the chromosomes YY, but this is rare.

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.