Answer:
Chernozem is a very fertile soil that produces high agricultural yields and offers excellent agronomic conditions for the production of crops, especially cereals and oilseeds. It is rich in phosphoric acids, phosphorus and
You would go upstream as in north if you would go down stream it would be south
In regions where the sun's rays hit at an angle, solar energy is less than the region which is exposed to direct sun rays and the climate is cold.
- here the slanting sun rays fall on the frigid zone.
- the frigid zone receives slanting ray due to The higher the latitude, the less is the angle that the sun's rays make with the surface of the earth. Hence , the polar regions ( frigid zone ) receive slanting rays of the Sun.
- on the other hand The Tropical zone gets vertical rays of the sun, while temperate and polar zones receive slanting rays of the sun.
- North and South poles get more slanted sun rays. The axis of the earth is not straight, it is tilted in the angle of approximately 23.5°.
- The more slanted the sun's rays are, the longer they travel through the atmosphere, becoming more scattered and diffuse and due to low heating the region becomes cold .
to know more about frigid zone click here
brainly.com/question/19538832
#SPJ4
When scientists discuss the great oxygenation event, they are referring to a time when the transition from the mildly reducing Archean atmosphere-ocean system to the oxygenated atmosphere and shallow oceans of the early Paleoproterozoic that started between ~2.4 and 2.3 Ga and ended between 2.1 and 2.0 Ga.
- here The Great Oxidation Event, also called the Great Oxygenation Event, the Oxygen Catastrophe, the Oxygen Revolution, and the Oxygen Crisis, was a time interval when the Earth's atmosphere and the shallow ocean first experienced a rise in the amount of oxygen.
- in this event Gradually, the accumulated oxygen started escaping into the atmosphere, where it reacted with methane. As more oxygen escaped, methane was eventually displaced, and oxygen became a major component of the atmosphere.
- The Great Oxygenation Event (GOE) was the creation of free oxygen in our atmosphere. It was caused by cyanobacteria doing photosynthesis
to know more about photosynthesis click here
brainly.com/question/26494694
#SPJ4
I believe it is tradewinds but I’m not to sure
