Answer:
Cyanobacteria are aquatic and photosynthetic, that is, they live in the water, and can manufacture their own food. Because they are bacteria, they are quite small and usually unicellular, though they often grow in colonies large enough to see. They have the distinction of being the oldest known fossils, more than 3.5 billion years old, in fact! It may surprise you then to know that the cyanobacteria are still around; they are one of the largest and most important groups of bacteria on earth.
Tamilnadu, Punjab, are the most famous places in India where cattle farming are done.
C) electrician
((ignore this brainly wants 20+ characters))
the answer is B ik this because i ahd this in a quick quiz
