Northern European Plain's excellent soil is called loess.
The European continent has varying deposits of loess soil from few decimeters to thick tens of meters. The Northern European countries whose soil predominantly loess are France, Poland, Germany, and northern Ukraine.
The soil in this area is due to periglacial conditions. Loess results from built-up of wind-blown dust/silt that forms sedimentation. The silt particle is normally 20-50 micrometer in size that consists of less clay and a balanced quantity of sand and silt. It is homogenous soil which is also porous.
B. thin layer in the upper atmosphere that protects Earth from ultraviolet rays
C. thin layer in the upper atmosphere that protects Earth from supersonic rays
D. thin layer in the lower atmosphere that protects Earth from supersonic rays
What do all ecosystems have ?
A. biotic p21 only
B. abiotic p21 only
C. producers only
D. biotic and abiotic p21
Answer:
1. B. thin layer in the upper atmosphere that protects Earth from ultraviolet rays
2. D. biotic and abiotic p21
Explanation:
A prime minister is the head of government.
B.
Corruption and high crime rates are a serious challenge.
C.
There is no freedom of religion or freedom of speech.
D.
Citizens first get the right to vote at age 21.
Answer:
B
Explanation: