Lets eliminate
A. organ transplant:
this was debated maybe 200 years ago (give or tak) and is no longer an issue
B. genetic engineerign
this is kind of debated becuase some scientists are trying to make life and that has to do with ethics because they would be playing god
C. space exploration
not debatable
D. prosthetics
we already have this and tis i not debatable
answer is B
He used more pacifistic methods in order to help free India from the British raj, or harsh rule (loose translation). Some of these methods would be simple defiance by taking his own salt when there was a law saying that they can't collect their own, or by starving himself for extended periods of time.
This is what I know if you find something better I encourage you to use it, this is at least the basic premise and a few examples.
I hope it helps.
The cultivation of horticulture may enable people to avoid traveling great distances in search of food. Instead, people began to establish themselves and cultivate crops or raise cattle on nearby land. They built stronger, more resilient homes and walled in their settlements as a kind of defense.
The word "horticulture" has its roots in the Latin words for "culture" and "garden." The art and science of horticulture include growing and managing a variety of plants, including fruits, foliage plants, vegetables, herbs, nuts, flowers, woody ornamentals, and turf. Some horticultural examples include gardening and landscaping. Growing plants for decorative, nutritional, or medicinal uses in yards or other outdoor places is known as horticulture. Horticulturists are those who grow flowers, fruits, nuts, vegetables, herbs, ornamental trees, and lawns.
Horticulture, especially the practice of growing fruits and vegetables, provides crucial components for a balanced diet. The major cause of some of the most common and life-threatening nutrient-related diseases in the world is a diet lacking in fruits and vegetables.
Learn more about horticulture cultivation:
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