What is a dry riverbed that fills with water after strong rains

Which summarizes the relationship between density of an element and its distribution in earth? a. the greater an element’s density, the greater the amount of it found in the crust. b. the denser an elements is, the smaller the amount of it earth core. c. the greater an elements density, the smaller the amount of it’s found in the crust

What structure on the south african coast has a range of 63 km and releases flashes every 30 seconds?

What type of coastline is commonly found along the western side of the america’s