Troposphere

– stratosphere – Mesosphere - Ionosphere

Mesosphere

– stratosphere – Ionosphere - Troposphere

Mesosphere

– stratosphere – Troposphere - Ionosphere

roposphere

– stratosphere – Ionosphere - Mesosphere

ElNino is an occasional incursion of warm water

along the coast of Peru.

ElNino is an occasional incursion of cold water

along the coast of France.

ElNino is a perennial incursion of cold water

along the coast of Peru.

ElNino is the periodic cooling of sea-surface

temperatures across the east-central equatorial Pacific.

Large collection of rock/debris between Mars and

Jupiter

Large collection of debris/rock between Earth

and Mars.

Large cloud of rocks out of solar system but very

close to it.

About 26 million years ago, an asteroid of size about

10 km hit Lonar in Maharashtra and wiped off large creatures like dinosaurs.

A 200 feet wide asteroid exploded above Tunguska

(Siberia) destroying about 700 km

wiping out large creatures like

dinosaurs.

About 65 million years ago, a 5 mile wide

asteroid hit the earth in the Yucatan Peninsula wiping out about 75% of life

forms including Dinosaurs

Most severe killing took place about 200 million

years ago. More than 95% of life forms, including dinosaurs, was wiped away.