Sort these situations into those where the pressure is high and those where

the pressure is low.

banging nails into wood feet of camels snow shoes feet of wading birds

blades of scissors wide straps on a rucksack blade of a knife

banging nails into wood: High

feet of camels : low

snow shoes : low

feet of wading birds: low

blades of scissors : high

wide straps on a rucksack: low

blade of a knife: high

Explanation:

From the definition of pressure:

Pressure is the ratio of force to area.

Pressure is high if area is small and vice versa. Assuming that the force is the same.

banging nails into wood: High

feet of camels : low

snow shoes : low

feet of wading birds: low

blades of scissors : high

wide straps on a rucksack: low

blade of a knife: high

layer a is the exosphere and layer b is the thermosphere.   is the answer i think but i hope this .

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )