How can we make a positive impact on earth?

Just doing small, little things is enough, such as throwing away your trash into the bin. You can also do beach clean-ups, volunteer at your nearest animal shelter, or even just use a recycling bin.

Explanation:

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.