Answer the following questions in the Essay box below. Which rock sample had the most porosity? Which sample had the least?
How much empty space was there in the medium-sized rock sample?
How much time did it take the water to flow through the gravel? The sand? What about the dirt?
Which sample is the most permeable?

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

Write a 150-word essay describing the effect of people's activities on the environment in the region.

According to a recent survey, the local government wants to classify people according to their income earning capacity. they want to do so in order to provide special facilities for the poor. who among the four individuals will be classified as poor? a. joseph earns $2.25 per day b. maria earns $1.50 per day c. rosita earns $2.00 per day d. tim earns $ 1.00 per day