Sunday, May 6, 2007

Population

1. My grandparents have 6 children(both sides have 3 children).
My parents have 4 children, and me a would loke to have 2 or 3. The first one is already on the road...

2.The population of my country is aproximatively 22.3 million. The population doesn't have a negative impact on the worste conditions of the country , because the number is normal for the area oh the country.

3.The earth's population now is estimated at 6.7 billion.

4.There are human factors that have a negative impact on population of animal species like: hunting , fishing or illegal trade .However there are human factors that control and defend species. Human legislation imposes laws in the regulation of animals for huntin and fishing. It is forbidden to hunt during the reproduction period.

5. In general, governments shoud not control population growth. However , in countries like China this is necessary because is affecting on people life-style. Also, in poor countries where the population is high , the government should control it, for a better quality of life.

2 comments:

Jennifer said...

I agree with you, Alina :)

Alexander :-) said...

I really wish you all the best on giving birth for the first time Alina! I am sure everything will go well :-) Alexander

Skyscrapers

The term "skyscraper" was used in 1880; after the first tall buildings were build in the United States. But the history of tall buildings dates back hundreds of years in the Middle Ages were engineers have engaged in a battle for the sky.

Before there were towers made of heavy stone. Towers had thick walls and the rooms were dark and overcrowded. Windows weren’t very common, it could disadvantage the structure.

With the discovery of the steel begin the new era of modern skyscrapers. The Home Insurance Building in Chicago was the first tall building to be made on a steel skeleton of vertical columns and horizontal beams.

New structural designs made skyscrapers even lighter and stronger. As skyscrapers get taller and taller, engineers were faced with a new problem: the wind. Today's tallest skyscrapers, which are almost 1,500 feet tall, must be 50 times stronger against wind than the typical 200-foot buildings of the 1940s.

New structural designs made skyscrapers even lighter and stronger. As skyscrapers get taller and taller, engineers were faced with a new problem: the wind. Today's tallest skyscrapers, which are almost 1,500 feet tall, must be 50 times stronger against wind than the typical 200-foot buildings of the 1940s.

Skyscrapers represent the big issue for the population explosion in our days. In my opinion skyscrapers is a good think because it permits to locate a big number of people in one place into the profit of green spaces that can be saved.