Human Population

Birth and Death rate

Human Population increases each day. We could even say every 3 minutes 1 or more babies are born around the world. Human Population increases everyday, every months and every year. Human population increases depending on the birth and death rate.
1. Birth rate:
Birth rate are the number of babies that are born each day, every hours and every minutes.
This are some factors that causes a high birth rate:

• Early marriages
• Lack of knowledge of birth control

2. Death rate:
Death rate are the number of people that died in the years and months. Death rate increases everyday, every months and every year. Human population decreases because / depending on the death rate.
This are some factors that causes a high death rate.

• Diseases
• Natural disasters
• Famine

Density
Human population is also measured by its density. When a place has many people living there the density will  increases.


Density may increases and decreases because of immigration and emigration. People who migrates is called migrants.


1. Immigration:
Immigration happen when people move from one country to another country / place. This action will increases the human population density. People who immigrates are called immigrants.


2. Emigration:
Emigration occurs when people move from the country to another country / place permanently. This action will decreases the human population density. People who emigrates are called emigrants.

Sample of a low density area

Say NO to pollution!!

Soil Pollution

Plstics and trashes are thrown on the ground

This are samples of soil pollution that i took beside my church. Soil pollution may cause air and water pollution. The picture on the left shows about peoples that throws their trash on the ground. This action may contaminate the soil and damage the plants. When the plants cannot grow anymore the animal that is classified to herbivore will have nothing to eat. So if they have nothing to eat they could die. 

                                     Air Pollution

cigarette that has been used

The picture on the right shows about air pollution. In this picture I saw a  cigarette on the ground. This cigarette has been used and when its used that means smoke is coming out of it and it made air pollution. It also cause soil pollution since its not thrown in the right place. Air pollution may lead / cause to global warming. Air pollution can also cause diseases. Example of the diseases and other :

◦ Lung cancer

◦ Eye irritation

◦ etc.

The diseases  and eye irritation I mention is caused by air pollution. Example lung cancer: it is cause by inhaling smoke from the cigarettes and for eye irritation is caused by the dust and dirt from the street and etc.

Water Pollution

Water pollution can make the water in the water dirty. If the water is dirty animals like fish will die because the water is contaminated with oil from farm and factories, human waste, and others. This things could contaminate the water because when it is thrown in the water it will go to the water bodies and it will spread form one place to another. This days finding clean water is hard due to water pollution. Of course we as humans need clean water to survive if we don’t get enough water for our bodies we could suffer from dehydration and if we drink dirty water / water that has been contaminated it may cause diseases. Some people have did that because there are less clean water in their place. People like us, are lucky because we still can drink clean and healthy water.

We must say NO to pollution and say YES to save our mother nature! Because if we will not control our action soon earth will not be suitable for us to live and we all will have no future.