The question is unclear. Effective at what exactly?
Organisms that depend on other sources for food are called heterotrophs.
Answer:
A. famine
Explanation:
The major contributing factors in the famine were the policies of the Great Leap Forward (1958 to early 1960s) and People's commune, in addition to some natural disasters such as droughts which took place during the period.
3 ways are as follows;
X) Figure out your messaging strategy.
X) Know how your audience communicates.
X) Move people towards engagement.
Hope it helps.
I think in this case the entropy is getting greater day by day
