In the troposphere, temperatures decrease with altitude (air pressure), which is known as the adiabatic lapse rate (9.8 Â°C per thousand feet). While there are different tempeâ¦ratures throughout the atmosphere, there are both increases and decreases in it as one moves upwards.
To easily shred romaine lettuce, stack several washed and dried leaves, roll up to form a cylinder and slice crosswise at 1/4- to 1/2-inch intervals. For best results, do not toss lettuce with dressing until just before serving as the dressing wilts the leaves.
Grow It: Sow seeds for leaf mixes thickly, preferably using a seeder, in tight rows 2 to 3 inches apart in 4-foot-wide beds. Cut leaves off one plant up to four times, tasting every time to make sure it hasnât become too bitter. For head lettuce, sow or transplant seeds 10 to18 inches apart, depending on the variety.