Answer:
The treaty entered into force in 1961 and currently has 54 parties. The treaty sets aside Antarctica as a scientific preserve, establishes freedom of scientific investigation, and bans military activity on the continent. The treaty was the first arms control agreement established during the Cold War.
Explanation:
Each system is unique, yet each interacts with the others.
Answer:
Swiftly moving water. Rapidly moving water can lift, for short periods of time, rocks from the stream bottom. ...
Ice wedging. Ice wedging causes many rocks to break. ...
Plant roots. Plant roots can grow in cracks.
Explanation:
Answer:
510.1 million km²
Explanation:
To find the surface area of the Earth we have to use the formula of 4*Pi*radius squared. The radius of the Earth is approximately 6,371 kilometers.
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Answer:
Water problems in Africa are many and complex; they include the following: - climate and runoff variability; - water scarcity driven by increasing population pressure, and rising standards of living; - increasing water supply costs as easily accessible sources are fully developed in some urban catchments; - low .
Explanation: