Please help fast Which of these were important national issues in the 1840s and 1850s?
A. Fear of invasion from Mexico and the territories
B. Immigration and slavery
C. Financial crisis and environment
D. Highways and education

The answer to this question is fear of invasion from mexico and the territories

Your answer would be a in this question good luck

Towns and small farms are usually for land, lakes, rivers, and seas.they also produce other food, like crops.it's also where animals are, where we get our meat.large plantations normally have forests, where crops are grown for sale. (similar to farms)plantations have larger fields of crops.our wine, sugar canes, and fruits come from plantations.