Which european city was covered in ash by volcano which erupted in 79 ce.

The specific heat of the three substances in the image are given in the table. stamped concrete: 0.75, grass covered soil: 1.01, water: 4.18. place the areas in order based on how fast they’ll heat up on a sunny afternoon. start with the fastest and end with the slowest.

What is the approximate chemical composition of the solar nebula?

Which barrier to economic development is shown in the following examples?