Decide whether each of the following statements regarding photosynthesis and respiration is true or false.

a) sugar and oxygen o2 are produced in photosynthesis.

b) sugar and oxygen o2 are consumed in respiration.

c)energy is required for photosynthesis.

All the statements are true.

Sugar and O2 is produced In photosynthesis, Sugar and O2 is consumed in respiration and energy is required in photosynthesis.

Explanation:

Photosynthesis this is a process whereby green plants use energy from sunlight to convert carbon dioxide and water to sugar and oxygen.

While Respiration is the process whereby sugar produced during photosynthesis combines with oxygen to produce usable energy for cells.

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.