Identify the correct statements about primary production in ecosystems. Choose the correct answer from the options given below:
1.Large-sized trees with dense population does not necessarily mean that the forests would be more efficient in terms of primary production.
2.The size of the producer is directly related with the efficiency of primary production.
3.The rate of fixation of radiant energy in an ecosystem determines the efficiency of production.
4.Net primary productivity of temperate forests is more than tropical forests.
A1 and 2
B2 and 3
C3 and 4
D1 and 3
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