What is a capital city

Which of the following emerging technologies uses the principle of chromosomes to identify suspects

In 1200 bce, the egyptian empire was declining as the civilization was beginning in mesoamerica. a. maya b. oaxaca c. olmec d. teotihuacan

Which of these is a drawback of using natural gas? a. it is fairly safe for use in homes.b. it burns more cleanly than crude oil products.c. scientists have developed new ways of extracting it.d. during its extraction, groundwater can be contaminated.