What zone where Ferrel and Polar cells meet, at about 60 degrees latitude typically produces climates arid-desert

Temperature- tree, shrub, and grass

Jungle-wet, high biomass

Frozen, little or no vegetation

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meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.