Question

how did theodore roosevelts square deal help the environment? by regulating the food industry by preserving the nations forests by suing a railroad trust by limiting working hours

Explanation:

The Square Deal included environmental conservation efforts. Roosevelt's administration preserved forests through policies like creating national forests and appointing Gifford Pinchot as head of the U.S. Forest Service. Regulating the food industry (A) and suing railroad trusts (C) relate to consumer/antitrust issues, while limiting working hours (D) is labor-related—none directly help the environment like forest preservation.

Answer:

B. by preserving the nation's forests