Atoms of which three elements could bond together to form an organic compound?

(a) carbon, iron, and nitrogen

(b carbon, hydrogen, and oxygen

(c) oxygen, hydrogen, and nitrogen

(d) oxygen, iron, and carbon

b

Explanation:

carbon, hydrogen and oxygen

stratosphere: as the altitude increases, the air temperature increases. the stratosphere has a layer of ozone, called the ozone layer. this layer absorbs most of the ultraviolet radiation from sunlight. this results in the stratosphere being warmer.

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.