________ is the weak layer
Fill in the blank(s) with correct word
Asthenosphere
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Organizations like OPEC have formed ________
A) in order to take maximum advantage of developed nations dependence on imported oil B) to ensure that developing nations get their fair share of fossil fuels C) to protect their national members' petroleum reserves for their own use D) to develop technologies to conserve non-renewable energy resources E) as a military alliance to protect developed nations' energy reserves
Which of the following is NOT a problem of subsistence agriculture?
A) It is subject to soil and precipitation variability. B) a lack of tools and high yielding seed C) Non-food crops, such as sugar and jute, become attractive to subsistence farmers due to the high prices they can get on the export market. D) Subsistence farmers can often barely provide for their families. E) Subsistence farmers suffer from a lack of capital.
The horizontal distance separating successive wave crests is called the wave period
Indicate whether the statement is true or false
The Panama Canal was cut to sea level to facilitate boats' passage between Atlantic and Pacific oceans and this is why its construction took so long.
Answer the following statement true (T) or false (F)