What are tributaries?

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Why are all maps distorted? when reading a map, why is it important to check the legend? what is the difference between longitude and latitude? identify the meridian at 0° longitude and the parallel at 0° latitude.

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics