Question

using biotechnology, scientists have produced plants that:
a can grow in salty soil
b can grow in volcanic rock
c both a and b
d none of the above

Explanation:

Biotechnology can be used to modify plant genes. Scientists have developed plants that can grow in salty soil (through genetic engineering to enhance salt tolerance). Also, some plants can be engineered to grow in volcanic rock (by modifying genes related to nutrient uptake and stress resistance in such harsh environments).

Answer:

C. Both A and B