Answer:
Option (B)
Explanation:
The sequential order of coal in term of its highly heated (most valuable) to least heated (least valuable) is given below-
Anthracite > Bituminous > Lignite > Peat
- Anthracite is a high-rank coal comprised of 90-95% of carbon content and only about 5% of oxygen and water content.
- Bituminous also high-rank coal comprised of 70-90% of carbon content and about 50-60% of oxygen and water content.
- Lignite is a low-rank coal and is comprised of 60-70% of carbon and about 30% of oxygen and 30-60% of water content.
- Peat is also a low-rank coal and is composed of less than 50% of carbon and about 50% of oxygen and nearly 70-80% of water.
According to the classification of coal, the amount of oxygen and water content increases from the higher grade coal to the lower grade, and the carbon content decreases from higher grade to the lower grade coal.
Thus, the correct answer is option (B).
Negative population growth means the country is on a late stage in the demographic transition model meaning birthrates are low and death rates are high. This will lead to decrease in working population and increase in elderly population. The economy will suffer as there is a decline in working population.
hope this answer helps....
Answer: the climate rigeion labeled with the number one on the map above is desert climate
its three characteristics are:
1. very high temperature
The climate is very hot. Summer day time temperatures can exceed 40°C.
Hot deserts have two distinct seasons: summer, when the temperature ranges between 35-40°C, and winter, when the temperature ranges between 20-30°C.
2. little or no rain
The climate is very dry with less than 250 mm of rainfall a year.
3. very cold nights
At night, these areas cool quickly because they lack the insulation provided by humidity and clouds. Temperatures can drop to 4°C (40°F) or lower.
cactus is one of the plants located in this ecosystem
camels is one of the plants located in this ecosystem
Explanation: the reason why i identified number one as the hot desert climated change is because of its color (very orangey). thoso types of colors may identify thoso hot climates, therefore, hope this helps!! <3
