Either C or D but I pretty sure it's C
The answer is d. Just so you know
Answer:
reduction in biodiversity by eliminating spawning and nursery grounds of aquatic life
Explanation:
Estuaries are transition zones localized between rivers and marine ecotones. These regions are influenced by marine factors such as waves, tides, and saline water, while rivers provide freshwater and sedimentary material. The mixture between seawater and freshwater is generally highly nutritive, thereby estuaries often represent high-production systems where fishes and shellfishes spawn and grow. However, many estuaries have suffered the negative effects of human activities, including deforestation, drainage, overfishing, nutrient pollution, etc.
<span>An example of an epithelial tissue where gases are exchanged is alveolar epithelium, which can be found in the lungs. This tissue is simple epithelial tissue. This is to be expected because the cell layer needs to be thin enough for the gasses like carbon dioxide and oxygen to diffuse or pass through. Stratified epithelial tissue contains several cell layers that would impair the exchange of gasses.</span>
It is heat, convection cells in the asthenosphere cause the movement of the crust.
