Which law helped farmers refinance their mortgages? Which law was passed to protect the environment?

Which law allowed farmers to buy back lost land at lower prices?

Which law was declared unconstitutional, but was retained in later legislation?

 Which law helped farmers refinance their mortgages?  

Farm Credit Act

Which law was passed to protect the environment?  

Soil Conservation and Domestic Allotment Act

Which law allowed farmers to buy back lost land at lower prices?  

Frazier-Lemke Farm Bankruptcy Act

Which law was declared unconstitutional, but was retained in later legislation?  

Frazier-Lemke Farm Bankruptcy Act

Explanation: took exam