Which of the following sketches could describe the evolutionary tree of life on Earth? In each diagram,time increases as you move upward,and each branch represents a different species. 
Definitions:
Strip Cropping
An agricultural practice where crops are grown in alternating strips to reduce soil erosion and encourage biodiversity.
Contour Farming
An agricultural technique where farming practices like plowing are done parallel to the contours of the land, aimed at reducing soil erosion.
Terracing
The practice of creating flat platforms on sloped land, often used in agriculture to reduce soil erosion and support water conservation.
Water Pollution
The contamination of water bodies (e.g., lakes, rivers, oceans, aquifers) by harmful substances or heat, negatively affecting aquatic ecosystems and human health.
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