Answer: The correct options are:
<em>exerts more pressure as it increases
</em>
<em>measures how tightly molecules are packed
</em>
<em>equals mass divided by volume</em>
Explanation:
Air density can be described as mass per unit of volume of the volume of air.
As the altitude increases, the air density tens to decrease. Hence, option A is not correct.
The density of the air determined how many atoms of air can occur in a particular volume, In other words, it determines how tightly or loosely atoms of air are packed in a particular volume.
Hence, when the air density will increase, the molecules will be more tightly packed and the pressure will be more.
After reviewing the graph you have given with the question, there are several reasons why carbon 14 can't be used to accurately determine the age of organic remains that are 1 million years old.
A few of the reasons are; Carbon-14 has a short half life, after 1,000,000 years there wouldn't be enough carbon 14, and too little of the original radioactive sample would remain. Any of these choices are correct for the answer to the question you asked.
Match the following:
a. mangrove 3. a small tropical tree that grows in wetlands near salt water
b. land degradation 2. reduced ability of the soil to support life
c. hectare 1. (ha) a unit of measure equal to roughly 2.5 acres or exactly 10,000 square meters
d. salinization 4. the development of higher than normal salt content in the soil
<u>ANSWER:</u>
To give all Mongolians access to the Internet, the government plans to use wireless technology.
<u>EXPLANATION:</u>
- Wireless technology here defined the gadgets which can be worked in a wire free environment. It is a gadget which are free from wires.
- With the help of wireless devices people will be able to connect from one place to another.
- These wireless technology works through waves which are RF and IR waves. Three section of Wireless connections are WAN, LAN PAN.
