Why drainage Density change during the year

In what ways has the human population put pressure on the land

Based on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m? question 2 options: 500 m 600 m 400 m 750 m

What major factors play a role in global warming? 1. human activity and normal climate conditions 2. natural factors and human activity 3. normal climate conditions and abnormal human activities 4. abnormal human activities and natural factors