An incandescent light bulb converts electricity into light by sending electricity through a filament, and incandescence is light from heat energy. Given these facts, what are light bulbs powered by among the following options: - heat - metal - wind - sun - energy - magnetism - gas - cold
heat

(Question)
Roundworms make up the phylum Nematoda, and also, nematoda and rotifera are important groups contributing to soils. Given these facts, _ contribute to soils. among the following options: - Sediment - Aphids - cacti - Roundworms - Exfoliation - Amphibians - Ringworms - rainfall
(Answer)
Roundworms

Ques: Harming an animal species causes that animal 's population to decrease, and serious questions remain regarding what happens if endangered populations continue to decrease. Given these facts, harming an animal species causes that animal's species to become what among the following options: - deforestation - an animal species - threatened - barrel-shaped - more populous - endangered - more popular - imbalanced
Ans: endangered

(Q).
Freshwater biomes have water that contains little or no salt, and terrapins are freshwater turtles. Given these facts, what lives in water that contains little or no salt among the following options: - animals - terrapins - a fish - Chlorophyll - bacteria - sharks - sodium - humans
(A).
terrapins

Ques:Soil can be depleted of nutrients, and soil or dirt is a very heavy material. Given these facts, what can be depleted of nutrients among the following options: - bamboo - fungi - dirt - moss - oxygen - free space - the Moon - cacti

Ans:dirt

Fungi are the only organisms that can decompose wood, and all wood is either pine or oak. Given these facts, fungi are the only organisms that can decompose what among the following options: - litter - pine - bamboo - matter - coal - maples - plants - elms
pine