There would be 2 dwarf(homozygous recessive)and 2 tall (heterozygous dominant)offsprings.
B.4 When the diameter doubles the volume eight times and the surface four times would be increased so that's why the answer is 4
The correct option is this: BREAKING CARBON BONDS RELEASE ENERGY THAT ORGANISMS USE FOR LIFE PROCESSES.
The food that are eaten by living organisms are composed of carbon element which bond in various ways with other elements. Chemical energy are stored inside this bonds and released for the organisms use when they are broken.