__ are filters for freshwater ecosystems, and ___ are filters for marine ecosystems.

Which sentences describes a cycle of dependency? a. aid harms the local economy creating the need for more aid.b. aid improves infrastructure and creates more wealth and more good infrastructure.c. aid programs become more reliable over time so people can depend on them.d. no answer is correct

Which of the following is a result of the low of food production

Brazil trades with the united states more than it does with any other country. industrially, the private sector has made brazil one of the most advanced countries in latin america, with massive investment taking place since 1996. still, over 1 million people live in state-owned housing and millions more are covered by government operated health care. these facts show that brazil has a a) mixed economy. b) market economy. c) command economy. d) traditional economy.