Asmall volcano that is made entirely of ash and volcanic fragments is a
a. cinder cone
b. stratovolcano
c. shield volcano

This is a 2017 topographic map of puerto rico in the united states, and i'm sorry that people there have suffered such a disaster. i want to ask, what do the yellow dots and areas represent on this graph? and the blue area and the little blue circle, and the little blue sign that looks like a signal tower, what do they stand for?

1. most of russia lies in a environment. a) alpine b) subarctic c) humid continental d) humid subtropical 2. the highest population density is found in the part of russia a) eastern b) northern c) southern d) western

1paragraph on how does natural selection allow for a population to envolve over time ?: (