Mp
Key Concept Builder
Cells and Energy
Key Concept How does a cell obtain energy
Din
the word och Sel
be
M
Carbon dioxide
reactions in chloroplasts
water
light energy
reactions in cytoplasm
oxygen
renctions in mitochondria
+Na+
Cellular Respiration in Plant and Animal Colls
o
Glucose is broken down
into smaller molecules.
Smaller molecules are
processed releasing
energy
ise
Photosynthesis in Plant Cells
e
division of the Merw
Light, energy, water, and
carbon dioxide react to
produce glucose (stored
energy).
le

the correct answer is d

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.