Answer:
Investigation: a searching inquiry for gathering detailed facts...
Experiment: an orderly procedure carried out with the goal of verifying , refuting or establishing the valitity of a hypothesis.... .
Explanation:
Sadanvama1979 GREETINGS
Cultural practices contributes the most to environmental pollution because <span>by making a fire produces the smoke which pollutes the air , that how culture practices contribute to air pollution.</span>
Pollen contains the male gamete.
The pollen from one plant is transferred to the stigma of another plant of the same species. Stigma is the female part.
<span>The answer is simple :) Natural selection was an important contribution to the theory of evolution because: It explained how evolution works. </span>