252. Many kitchens today are equipped with high-speed electrical …

Many kitchens today are equipped with high-speed electrical gadgets, such as blenders and food processors, which are able to inflict as serious injuries as those caused by an industrial wood-planing machine. (A) which are able to inflict as serious injuries as those (B) which can inflict serious injuries such as those (C) inflicting injuries as …

778. Yellow jackets number among the 900 or so species of the …

Yellow jackets number among the 900 or so species of the world's social wasps, wasps living in a highly cooperative and organized society where they consist almost entirely of females—the queen and her sterile female workers. A. wasps living in a highly cooperative and organized society where they consist almost entirely of B. wasps that …

756. To map Earth’s interior, geologists use a network of seismometers …

To map Earth's interior, geologists use a network of seismometers to chart seismic waves that originate in the earth's crust and ricochet around its interior, most rapidly traveling through cold, dense regions and slower through hotter rocks. A. interior, most rapidly traveling through cold, dense regions and slower B. interior, which travel most rapidly through …

718. It is called a sea, but the landlocked Caspian is actually the largest …

It is called a sea, but the landlocked Caspian is actually the largest lake on Earth, which covers more than four times the surface area of its closest rival in size, North America's Lake Superior. A) It is called a sea, but the landlocked Caspian is actually the largest lake on Earth, which covers B) …

687. Sunspots, vortices of gas associated with strong electromagnetic activity …

Sunspots, vortices of gas associated with strong electromagnetic activity, are visible as dark spots on the surface of the Sun but have never been sighted on the Sun’s poles or equator. (A) are visible as dark spots on the surface of the Sun but have never been sighted on (B) are visible as dark spots …