26. Which of the following is a bacterial disease affecting tomatoes?
a) Late blight
b) Bacterial spot
c) Apple scab
d) Root rot
Answer: b) Bacterial spot
27. Leaf curl is a viral disease commonly affecting which plant?
a) Peppers
b) Potatoes
c) Tomatoes
d) Citrus fruits
Answer: c) Tomatoes
28. What is a common symptom of bacterial blight in plants?
a) Yellowing of leaves
b) Wilting
c) Lesions on leaves and stems
d) Mottled leaves
Answer: c) Lesions on leaves and stems
29. Which of the following is a fungal disease affecting grapes?
a) Late blight
b) Downy mildew
c) Citrus canker
d) Root rot
Answer: b) Downy mildew
30. What is the main cause of blossom end rot in plants?
a) Excessive sunlight
b) Lack of nutrients
c) Overwatering
d) Calcium deficiency
Answer: d) Calcium deficiency
