World climate regions

General Introduction Climatic Zone Latitude Climatic Type (Approximate) Rainfall Regime(with approx. total) Natural Vegetation Equatorial Zone 0°-10° N and S Hot, wet equatorial Rainfall all year round: 80 inches Equatorial …

Continue Reading

Winds and Pressure Belts

Atmospheric Pressure 1. Vertical Distribution – The air density and atmospheric pressure are higher in the lower layers of the atmosphere. Air pressure decreases with height. Although there is no …

Continue Reading

Temperature and solar radiation

Atmospheric Temperature – The distribution of temperature in the atmosphere is not uniform. It is affected by various factors such as latitude, altitude, continentality and seasonal variability. Determinants of Temperature …

Continue Reading

DISTRIBUTION OF CONTINENTS AND OCEANS

Continental Drift Theory (Alfred Wegener), 1912 Forces of Drifting Evidence Sea Floor Spreading (Hess), 1961 Plate Tectonic Theory Type of Plate Margin Constructive/Divergent Boundary Destructive/Convergent Boundary Conservative/Transform Boundary Motion Diverge …

Continue Reading

Geology and Rocks

Geology Relative duration of Eons ERA (Period) EPOCH (Age)(millions of years ago) Some important events in the history of life Phanerozoic Cenozoic Quaternary Holocene 0.01 Historical time Phanerozoic Cenozoic   …

Continue Reading

Origin of the earth

Various geologists have various convictions about the beginning of the Earth. It grouped into two sorts. Monistic Concept 1. (Kant’s Gaseous Hypothesis) 2.Nebular Hypothesis of Laplace ❖ Dualistic Concept 1. …

Continue Reading