Ice wedging and abrasion
putting trash in the water and piping sewage water in oceans
When scientists use the law of superposition to determine the age of a fossil, they go by the principle of 'every undisturbed layer of rock is older than the layer above it. This is not the most precise way of determining age, and in fact this method can only reveal the approximate age, but not the exact one.
B) Infiltration from surface to the soil and then it percolates through the soil down to the bedrock and water table
Answer:
Hierarchical diffusion is one of six ways cultures can spread around the world (what we call ‘types of cultural diffusion’). What makes hierarchical diffusion unique is that it involves the spread of culture starting from the most powerful and influential people within the culture.
Once the influential people embrace a certain culture, the rest of the culture are more likely to follow.
Explanation:
If the sin 30° = 0.5, then the cos 60° = 0.5
