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</span><span>the time or date (twice each year)
</span><span>when day and night are of equal length</span>
If the rains fail it can cause<span> drought in addition to natural factors, the land is marginal. Human activities such as overgrazing, overcultivation and the collection of firewood can lead to desertification, particularly when combined with drought conditions. hope this helps and plz rate below :)</span>
I think your answer is B.) The objects must be in direct contact with one another
