How does ozone in the stratosphere help organisms living on Earth’s surface? A.

Ozone in the stratosphere absorbs the Sun’s heat and keeps Earth’s surface from getting too cold.

B.

Ozone in the stratosphere keeps harmful ultraviolet radiation from the Sun from reaching Earth’s surface.

C.

Ozone in the stratosphere reduces the pull of Earth’s gravity and keeps the air pressure on Earth’s surface from getting too high.

D.

Ozone in the stratosphere reacts with hydrogen to form water vapor that falls as precipitation on Earth’s surface.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.