How long would it take to count to 7 billion
Seven Billion and Counting: The Crisis in Global Population Growth by Michael AndreggOctober 31, 2011, marked an uneasy milestone for Planet Earth. On this day, the global population surpassed seven billion. What does that mean for a world that, until the nineteenth century, was home to less than one billion people? Experts say it means the planet is in trouble. Some wonder if Earth will even be able to sustain human life at its current rate of growth.
Will there be enough food for everyone? Will conflicts over land increase? How will the environment be affected? Can humanity survive the predicted disasters?
More than a simple case of running out of space, the population crisis is interwoven with a host of other issues--from climate change and resource management to war, disease, and poverty. Discover how all these factors converge to place an entire planet in crisis mode--and explore what sort of responses that crisis may require.
How long would it take to count to 1 trillion?-Fun with big numbers
How long does it take to count to 1 million? 1 billion? 1 trillion?
Millions and Billions: How Big is That? Comprehending Large Numbers. Some things are measured in millions and billions. There are millions of miles between the earth and the sun, and millions of stars in the sky. New movies often sell millions of dollars in tickets during their first week at a theater. Dinosaurs roamed the earth millions of years ago.
Overview: In these scenarios and this activity, students get a sense of how big a billion really is. This is necessary in order to understand deep time. Materials: pages of asterisks or no materials at all page of 4, asterisks Advance Preparation:. Procedure: To set the stage for understanding what a billion is, select from the following scenarios to share with the students:. Or you could take a little cross-country trip. If you start your journey in Seattle, WA you could head for
All rights reserved. INDIA: Its steaming streets crammed with vendors, pedestrians, and iconic Ambassador taxis, Kolkata throbs with some 16 million people— and more pour in every day from small towns. In only three cities worldwide topped ten million. Its lens, no bigger than a small raindrop, magnified objects hundreds of times. Leeuwenhoek had made it himself; nobody else had one so powerful.