c. the possible ravages of insects d. the viability of the seeus. 9. Which of the following is NOT true about the rate of planting? a. More seeds are planted when seeds have low viability b. More seeds are planted when the soil and weather conditions are not favorable c. When seeds produce delicate and weak seedlings, more seeds should be planted d. When there are possible ravages of insects in the area, less seeds should be planted.