Which of the following statements is true? Cacti are found in the tropical rainforest.
All food chains start with the consumer.
Carnivores get their energy directly from the sun.
Decomposers add nutrients back to the soil.

Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.