Answer:
78.09% nitrogen
20.95%oxygen
0.03%carbon dioxide
0.93%other gases
this is the composition of air
it is essential for respiration
Explanation:
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The correct answer is:
a. was completed in 2003
It was started in 1990, and run until 2003 (so we know that the first answer is correct and the second isn't). It provided a big amount of important information, but it' didn't allow anyone to alter their appearance, as this is not something that can be achieved via genetics.
The practice aimed at stabilizing the world population in which each couple has no more than two children is known as zero population growth
A population is the entire set of people in a group, whether that group is a country or a collection of people who share a certain trait. A population is the group of people from which a statistical sample is taken in statistics.
A population is the total number of individuals who cohabit a certain area. The population of a city is the total number of inhabitants. They are referred to as residents or occupants. The population consists of everyone who resides in the region.
The population should be in balance with available resources and means as one of the key aspects in maintaining a healthy ecosystem.
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