Q: If nuclear fission can be used to heat buildings, then which of the following is sometimes used to indirectly heat buildings? Answer choices: - hydrogen and oxygen - carbon monoxide - direct energy - dropping spheres - electromagnetic energy - a hydraulic system - nuclear fission - farm animals
A: nuclear fission

Q: If somei insects communicate with chemicals detected by their antennae to communicate, then some insects communicate with what detected by their antennae? Answer choices: - chemicals - sound - microwaves - radio waves - flash cards - Decibels - wave in air - Vibrates
A: chemicals

Q: If antibodies bind to allergens, then _bind to allergens.? Answer choices: - to stay warm - mammals - fur and fat - animals - protect them - Most plants - Antibodies - Chemical energy
A: Antibodies

Q: If aprism bends light rays, then what may bend light rays? Answer choices: - fibers - prism - an ion - sun - a wave - lightbulb - forces - flashlight
A: prism