Traditional Maasai society is organized according to age groups known as sets.
<u>Answer:</u>
<em>Use of renewable resources</em>
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<u>Explanation:</u>
Greenhouse gases from human exercises are the most critical driver of watched environmental change since 20th centuries. Atmosphere compelling alludes to an adjustment in the Earth's vitality balance, prompting either a warming or a cooling impact after some time. An expansion in the barometrical convergences of ozone-depleting substances creates a positive atmosphere driving or warming effect.
Centralizations of the gas and other ozone-depleting substances in the climate have expanded since the start of the modern period. Practically the majority of this expansion is owing to human exercises
The crust and the upper mantle.
The first evidence was presented by Wegner when he hypothesized that all the continents once formed a single land mass called the Pangea before drifting apart. So, to fill in the blank, it would be that '<em /><em>neighboring continents [are] like jigsaw puzzle pieces</em>'