Select the correct answer from each drop-down menu. blank involves extracting minerals such as coal from Earth’s surface. It harms the environment by releasing radioactive materials, toxic minerals, and blank
into the air. It also produces toxic liquid mixtures called
, which contain pollutants that cause soil erosion and blanks water pollution.

first blank:Open pit mining, river damming and over-farming
second blank:smoke, metallic dust and acid rain
third blank:fertilizers, smog and slurries

Which of the following best describes the economy of africa?

Match the following terms and definitions a region in arkansas defined by the arkansas river in the western part of the state answer 1 a thoroughly dissected area with steep valley walls and narrow floors answer 2 a geographical region of a country or state answer 3 the friendly and generous reception and entertainment of guests, visitors, or strangers answer 4 the branch of knowledge concerned with the production, consumption, and transfer of wealth answer 5 statistical data relating to the population and particular groups within it answer 6 a mountain range in west central arkansas and southeastern oklahoma answer 7 travel for pleasure or business; also the theory and practice of touring, the business of attracting, accommodating, and entertaining tourists, and the business of operating tours answer 8 answer all parts of the question.

Southeast asia relies on its many because of the volcanic, mountainous terrain. a. highways c. rivers b. airports d. lakes