Answer:
A. Contour
Explanation:
Contour planting is a farming practice that helps reduce or prevent soil erotion through, the planting of crops along the contour.
A contour is are lines developed across a slope at the same level of elevation of the slope. A slope referes to land which slants downwards.
The contours prevent the free flow of rain water down the slope, hence trapping soil particles that would otherwise erode. They also reduce the speed with with running water, goes down the slope.
missouri applied to become a state in 1821.
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Answer:
B. Oceania
Explanation:
Oceania is not only the smallest ecological zone in the world, it is also the smallest continent in the world, with most of that continent being made up of Australia.
An ecological zone can also be called an ecozone and is characterized by a geographic area, where borders are composed of natural factors that occur in nature and not by factors created by humans. These natural boundaries, separate the regions due to differences in vegetation, soil, fauna, climate and other factors that occur naturally in the environment.