1. America In The Beginning Who were the first Americans? How and why did they come here? 30,000 years ago During a period of low temperatures called anIce Age The world…

1. Ayesha Maqsood Fareeha Aftab Hira Sattar Madiha Ramzan Maryam Habib Sundas Waheed 2. CONTENTS: Introdution Climate change in past years. Pre-Holocene (1.5 million years)…

1. Ayesha maqsood Sundas Waheed Lahor college for womem university Lahore. 2. CONTENTS: Introdution Climate change in past years. Pre-Holocene (1.5 million years) Time scale…

1. America In The BeginningWho were the first Americans?This land bridge is known as Beringia.Animals like mammoths crossed the bridge…

Populating The World Populating The Americas Social Studies for 9th E.G.B. Teacher: Mauricio Torres { Early human migrations began when Homo erectus first migrated…

Climate change is a significant and lasting change in the weather patterns over periods ranging from decades to millions of years. An ice age, or more precisely,…