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samsung
identify the relative abundance and descriptions of some of the gases in the atmosphere.
trace gas
required for
photosynthesis
second most
abundant gas in
the atmosphere
incorporated as a
major component of
proteins and dna
does not
react with other
substances
required for aerobic
cellular respiration
most abundant gas
in the atmosphere
relative
gas
description
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spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.