Answer:
b. increased temperatures
Explanation:
- The primary reason for the productivity in the Photo zones is due to the influence of major factors like the Nutrients, light, and grazing of animals. The rate at which the plants are eaten by herbivorous.
- Upwelling of cool, water from the bottom and interaction of warm waters from the above that derives nutrient-rich water to the surface. These upwelling can be consciously be caused by the winds and the depth of light penetrates down the layer of the water.
- As the intensity of water decrease with depth and with the concentration of nutrient the photic zone becomes shallower.
Answer:
Explanation:
A rectangle is a two-dimensional quadrilateral.
The area is given as:
Area of a rectangle = length x width
Perimeter = 2(L+ W)
where L is the length and W is the width
Condition:
If L and W are increased by 3 feet each;
New length = L + 3
New width = W + 3
Area of new rectangle;
Area = (L + 3) x (W + 3)
= LW + 3L + 3W + 9
Perimeter of new rectangle;
Perimeter = 2(L+3 + W + 3)
= 2(L+W +6)
Economic development is able to continue in the absence of the resources that first drove it because:
- Countries can trade to get the resources
- Economic development allows for diversification
When a nation is unable to access the resources that made it quite successful, it can resort to buying that resource and then improving on it.
For instance, the U.K. used to produce sufficient coal but now import more than they produce.
Another way a nation can continue developing is diversification. The income gained from the resource that has now finished, will enable a nation to go into other economic activities which will continue their development.
For example, China used to export only agricultural goods but diversified into industrial.
In conclusion, a country can keep developing if their primary resource is finished thanks to trade and diversification.
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