Answer:
2.
Explanation:
it describes an event the writer has witnessed
<span>The answer is to control the crossing of the traits.
The idea of preventing plants from self-pollinating is to control the crossing of the traits. If plants were self-pollinating, he could not know if the traits are inherited from the same plant or from the other. By preventing this, he could cross parents with known phenotype and that way learn about crossing process and inheriting process.</span>
<span>The answer is C. Genetic engineering only produces the one variety that is intended to be engineered. Selective breeding, however, gives variations in the kind of offsprings produced hence the biotechnologist can pick the best suited for a particular environment. The later process is, therefore, cheaper and efficient that the former</span>
Your own opinion .. take a educated guess
The weathering process occurs when rocks are exposed to the hydrosphere (water) and atmosphere (air).
