Mass movement or mass wasting is a process of movement of particles of rocks, soil and other debris down a slope due to the effect of gravitational force acting on these particles. The mass movement or mass wasting occurs due to agents like high speed wind and fast moving water down a slope. Mass movement or mass wasting mainly occur in landslides and mudslides. Rain falling on a slope, water flowing downhill a region, large rocks and debris on a slope are factors which will influence the mass movement of particles.
Cyanobacteria are microscopic organisms found in all kinds of water. They are single-celled organisms and produce their own food from sunlight via photosynthesis. Cyanobacteria are important to evolution because they developed the oxygen atmosphere we live in by producing waste from cyanobacteria. Plants also evolved from Cyanobacteria.