If electricity uses an electrical conductor, then an electrical conductor is required for the operation of:? Answer choices: - water current - electricity - satellites - energy - to move people - gas lamps - trains - lightning
electricity

(Question)
If magnetism can cause real-world things to repel each other, then magnetism can cause what to repel each other? Answer choices: - electromagnetic energy - flow of electrons - Veins and arteries. - barnacles - solid, liquid, gas - an electron lens - real-world things - Electrical energy
(Answer)
real-world things

Ques: If sand is formed by weathering, then what process creates sand? Answer choices: - Water expanding - beach - evaporation - friction - silicon dioxide - weathering - dunes - rainfall
Ans: weathering

(Q).
If pollution is bad for water, then what is bad for water? Answer choices: - pollution - seaweed - flooding - rain - deforestation - Pesticides - Wet weather - fresh water
(A).
pollution

Ques:If using radioactive gamma ray sources, existing microorganisms in food can be killed, then using radioactive gamma ray sources, existing microorganisms in food can be what? Answer choices: - killed - cancer - organisms - tiny - dangerous - extended - colored - resized

Ans:killed

If energy decreases as it goes up levels, then what happens to energy as it goes up levels? Answer choices: - Decibels - heat produced - decreases - Evaporation - It expands - radiation - glucose - dehydration
decreases