I believe the answer is: Formal Operational Stage
During the Formal Operational Stage, people already developed the ability to form abstract thinking and <span> solving complex problems.
For average people, Formal operational stage started when we're around 12 years old of age and keep developing until our late adulthood.</span><span />
Answer:
![Amount = 9.6km](https://tex.z-dn.net/?f=Amount%20%3D%209.6km)
Explanation:
Given
![Length = 0.7km](https://tex.z-dn.net/?f=Length%20%3D%200.7km)
![Width = 0.5km](https://tex.z-dn.net/?f=Width%20%3D%200.5km)
![Wires = 4](https://tex.z-dn.net/?f=Wires%20%3D%204)
Required
Determine the length of wire needed
First, we calculate the perimeter of the land.
![Perimeter = 2*(Length + Width)](https://tex.z-dn.net/?f=Perimeter%20%3D%202%2A%28Length%20%2B%20Width%29)
![Perimeter = 2*(0.7km + 0.5km)](https://tex.z-dn.net/?f=Perimeter%20%3D%202%2A%280.7km%20%2B%200.5km%29)
![Perimeter = 2*(1.2km)](https://tex.z-dn.net/?f=Perimeter%20%3D%202%2A%281.2km%29)
![Perimeter = 2.4km](https://tex.z-dn.net/?f=Perimeter%20%3D%202.4km)
That is the amount needed for 1 row of wire.
For 4 rows, it would be:
![Amount = 4 * Perimeter](https://tex.z-dn.net/?f=Amount%20%3D%204%20%2A%20Perimeter)
![Amount = 4 * 2.4km](https://tex.z-dn.net/?f=Amount%20%3D%204%20%2A%202.4km)
![Amount = 9.6km](https://tex.z-dn.net/?f=Amount%20%3D%209.6km)
The correct option is B.
A balanced physiology can be affected by elevation because as the altitude change, there will be changes in the surrounding air pressure and this will affect the person's internal system. Sun exposure and humidity will also affect a balanced physiology because, they will affect the amount of water, that is been lost from the body system.
Precipitation type on the other hand has no effect whatsoever on a balanced physiology.<span />
<span>William Jennings Bryan delivered a speech called "Cross of Gold" at the Democratic National Convention in Chicago in 1896. It could be said that the main idea was to convince people that an economy based on Gold Standard would not be a better economy but it should be a silver one. This is because there are more silver than gold and it is also cheaper</span>
Main Groups:
Crustaceans
<span>Insects </span>
<span>Arachnids </span>
<span>Myriapods(centipedes & millipedes) </span>
<span>Characteristics:
Exoskeleton
6+ legs
Jointed appendages
</span>