Do all the persons who won agriculture fields also rear cattle?

Do all the persons who own agriculture fields also rear cattle?

A farmer introdued garden lizards into his agricultural fields to eradicate insects. What do you name this method ?

Magnetic field lines show the direction (at every point) along which a small magnetised needle aligns (at the point). Do the magnetic field lines also represent the lines of force on a moving charged particle at every point ?

Is there any relation between agriculture and cattle rearing?

Is there any relation between agriculture and cattle rearing or animal husbandry?

How do you test the pH of the soil in the agriculture field ?

How do you appreciate the farmer, in the agriculture field?

Four persons entered the lift cabin on the ground floor of a 5-floor house (Assume ground floor as also one floor). Assume that each of them independently and with equal probability can leave the cabin at any floor beginning from the first. Find the probability for all the four persons to leave the cabin at different floors :