Yeah. One 800$ hamas rockets costs Israel 80k$ for their iron dome equivalent. It is way costlier for them. However, unlike the comment I replied too, I don't think Israel will run out of people.
Maybe they will stop advancing once there are 'too many' casualties. But this will be way fewer than death people in Gaza.
Yes, and no. There are different subspecies/cultivars that have been breed by humans. Some are specifically breed for green, others for black tea.