Let's analyze each statement:
1. **Those living in the Northwest had to farm for all of their food.**
**False** - The Northwest tribes often relied on fishing, hunting, and gathering, particularly fishing for salmon, as a major food source, rather than farming all their food.
2. **Those living in the Northwest lived along the rainy coast of the Pacific Ocean.**
**True** - The Northwest tribes often lived in regions with a temperate climate, featuring a lot of rainfall, particularly in coastal areas.
3. **Those living in the Southwest lived in moist, rainy climates.**
**False** - The Southwest is generally characterized by arid and semi-arid climates, with lower rainfall levels.
4. **Those living in the Southwest hunted and gathered.**
**True** - While some Southwestern tribes did practice agriculture, many also engaged in hunting and gathering due to the challenging environmental conditions.
So the answers are:
1. False
2. True
3. False
4. True