Answer:
solar power uses energy directly from the sun
hydroelectricity uses running water
oil may run out in the next 100 years
nuclear is the largest non-fossil fuel
Explanation:
hope i have understood the question here!
Answer:
In most African countries, there are less employment opportunities in the white-collar job category than other types of work (blue-collar). The good news is that many young Africans are asking how to make money in Africa. This is good news because they are ready to diversify and find other opportunities to make a living.
Explanation:
The Tertiary Period marks the beginning of the Cenozoic Era. It began 65 million years ago and lasted more than 63 million years, until 1.8 million years ago. The Tertiary is made up of 5 epochs :
The Paleocene Epoch - 65 to 54 million years ago
The Eocene Epoch - 54 to 38 million years ago
The Oligocene Epoch - 38 to 24 million years ago
The Miocene Epoch - 24 to 5 million years ago
The Pliocene Epoch- 5 to 1.8 million years ago
Each epoch has unique characteristics for climate and geography. The plants and animals changed from epoch to epoch also.
In the early 1800’s a system for naming geologic time labeled only four periods. They were named using the Latin forms of numbers for first, second, third and fourth. The word tertiary means “third.” It was the third period in this system. Today, we use a different system, but the name Tertiary is still common for the first part of the Cenozoic Era.
<h3><u>Answer;</u></h3>
A.subtracted from the birth rate
<h3><u>Explanation;</u></h3>
- To calculate the population growth rate, we subtract the death rate from the birth rate.
- The birth rate together with mortality and migration rate are used to calculate population growth.
- When birth rates are higher than the mortality rate, then the population growth is positive and vicevarsa.
- Zero population growth can be achieved when the birth rate of a population equals the death rate
