Similarly, when heat and light from the sun enter our atmosphere, some gases like carbon dioxide, methane and nitrous oxide do not allow the heat to reflect back into space (like the glass sheet). These are the greenhouse gases. Because they cause the atmosphere to act as a greenhouse, trapping heat inside.
Edging shears. A neatly edged lawn is an attractive feature in the garden, and edging shears make trimming easy. Push the soil away from the grass edge, and then use the shears like scissorsâonly the cutting blade should move, while the other blade remains static.urfing iron. This useful tool is used to remove turf from existing lawns. After the square of turf has been cut, the turfing iron is used to slice underneath it, severing the grass roots. It has a sharp point for cutting and an angled handle to produce level pieces of turf.
Straight-bladed Mayo scissors are designed for cutting body tissues near the surface of a wound. As straight-bladed Mayo scissors are also used for cutting sutures, they are also referred to as suture scissors. Curved-bladed Mayo scissors allow deeper penetration into the wound than the type with straight blades. The curved style of Mayo scissor is used to cut thick tissues such as those found in the uterus, muscles, breast, and foot. Mayo scissors used for dissection are placed in tissue with the tips closed.