Dutch researchers have been trying to simulate the soil conditions of the moon and Mars for crop cultivation experiments. They have carried out a preliminary analysis of small carrots, peas, rye and tomatoes grown in this experiment. The results of the experiments are promising. Safe and possibly healthier than crops grown on soil on the planet. British media say that edible crops can be planted on Martian soil and hope of colonizing Mars is a step forward. Which of the following, if true, cannot be questioned by British media:. ["Mars soil's proportion of heavy metals is not the same as Earth's soil.", 'The potato grows badly in another similar experiment.', 'There is a long way to go from experiment to actual implementation.', "Moon, Mars, Earth's climatic conditions are very different."]