Which of the following did Mexico and the republic of Texas continue to fight about in the 1840s?

The soviet union and the united states believed in two very different economic systems. what were the names of each?

What do most climatologists see as a major cause of rising global temperatures? a. earth's closer proximity to the sun due to its gravitational pull b. greenhouse gases produced by burning fossil fuels c. rising ocean levels caused by melting polar ice sheets d. water pollution cause by industrial waste

Which of these is the modern day result of spain colonization of the americans?