Your answer would be D because it is the only answer choice that would attract people.
(c) The countries of south America and Africa
The exposed portion of the
continental crust underlying North America refers to Canadian Shield. The continental
crust is known as the North American Craton which consists of rocks from the
Archean dn Proterozoic eons and extends from Mexico to Greenland. Canadian
Shield also produces great resources that helped most humans for their economic
development. Because of the resources present in the Shield, it has a great
disadvantage to settlers. The primary obstacle to population growth in the area
is the presence of the bare rock, thin soils, muskeg and insects.
Answer:
some commonly and naturally occurring chemicals are <u>sodium, potassium and lithium</u>
Explanation:
- The most commonly found water-reactive mineral or chemical found are list above as these are commonly found abundant in nature and most of these elements some heavy metals are found throughout the artificial sources.
- Some substances react with water to produce heat such as flammable hydrogen gases Sodium is a naturally and artificially indirect form of a chemical element that is mixed with water sop as to produce the desired reaction on the object.
- Lithium is a colorless substance found in water forming a basic solution. Potassium is also a tasteless colorless and odorless substance that is dissolved in water and is known for the vital forms of life.
Answer:
I believe it is El Salvador. Hopes this helps!!
