What is a major factor affecting population growth rate?

In the 1400s, portugal’s economy was based on a. industry b. exports c. finance d. trade

Match the mountains with the type of collision that formed them. a. andes b. aleutians c. north american cordillera d. appalachians 1. continental- continental 2. continental- oceanic 3. oceanic- oceanic 4. arc- continent

Horizon a is also sometimes called a. topsoil b. subsoil c. bedrock d. weathered bedrock