Which of the following is not a characteristic of a developed country?
a. low life expectancy
b. high literacy rates
c. many educated people
d. low unemployment

"spheres" is the name of the four subsytem

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's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it