If blowing air into a whistle causes sound, then what does blowing into a whistle cause? Answer choices: - wind - energy - waves - sound - Injury - ice - Energy. - heat
sound

(Question)
If biomass is the total mass of organisms on the food chain, then what is biomass the total mass of? Answer choices: - remains of prehistoric life - nutrients - dead weight - organisms on the food chain - Microscopic organisms - h2o - sub-units of species - The number of individuals
(Answer)
organisms on the food chain

Ques: If condensation can lead to rain, then what can be caused by condensation? Answer choices: - rain - wind - gills - Gases - drought - heat - breeze - gas
Ans: rain

(Q).
If reproduction involves the transmission of genes, then what is the transmission of genes? Answer choices: - Reproduction - Cancer - Sex - Pollination - Most plants - mechanical - by indirect light - a wave
(A).
Reproduction

Ques:If soil erosion means soil loss though moving air, then what causes soil loss from soil erosion? Answer choices: - nutrients - flooding - rainfall - moving air - deforestation - forces - stagnant air - lome

Ans:moving air

If sponges are used for protection by animals, then what can animals use for protection? Answer choices: - hair - bushes - keratin - food - shells - appendages - energy - sponges
sponges