Answer:
Scientists examine evidence from DNA, protein structure, fossils, early development and body structure.
The Meat Inspection Act of 1906 put an end to meat companies using chemicals to try to preserve meat.
Prior to this act, the companies to were using chemicals like boric acid and formaldehyde to try to keep meat from rotting. These chemicals were making people sick, and in some cases, killing them.
However, United States imports from the trade agreement countries were Jess in 1938 than 1937 in every case except Haiti and Honduras, and United States exports also dropped except to Honduras, Colombia and Costa Rica.
Your answer is D :
Millions of years ago, the area pictured was the site of a mountain range and today, it is seen that only a few plateaus remain. This scenario proves that nothing is permanent in this world not even the nature because the natural resources such as plateaus are subject to change due to the changing weather and climate of the earth. These two factors caused occurrences such rain, floods, typhoons to deform and even destroy and natural resources. Some other resources are completely washed out while others transform into a different kindo of a resource since the earth moves, the plates deep down also moves resulting to unpredictable changes in the surface of the earth.
