Geography class 5 essay questions

Paper instructions:
Please help me to answer those five geography class essay questions with your own words.
1.Compare and contrast the four spheres of the Earth and provide an example of how two of them interact with each other.
2.Discuss the concept of map projection and why it is necessary when constructing maps.
3.Compare and contrast airflow in a high-pressure system with that of a low-pressure system in the Northern Hemisphere.
4.Describe the soil forming factors and provide an example of how they interact to produce soil.
5.What are the differences between Mechanical weathering and Chemical weathering? Give an example of each.