If oxygen is a requirement for life, then which is a requirement for life? Answer choices: - glucose - hydration - sunlight - scandium - recovery - oxygen - uranium - radon
oxygen

(Question)
If sponges are a source of food for many marine animals, then marine animals find these to be a great source of food:? Answer choices: - grain - nutrient - sponges - Energy. - sea vents - sodium - Energy - fungi
(Answer)
sponges

Ques: If scraping oneself on a contaminated object may lead to disease, then scraping oneself on a contaminated object may lead to what? Answer choices: - superpowers - symptoms - disease - enhanced health - blood - good fortune - bacteria - toxins
Ans: disease

(Q).
If liquid precipitation causes erosion, then what causes erosion? Answer choices: - standing water - coastlines - mouth of rivers - ice wedging - liquid precipitation - Physical weathering - trees - gravity
(A).
liquid precipitation

Ques:If decreased oxygen levels cause blood vessels to dilate and cell walls to relax, then what causes cell walls to relax? Answer choices: - exercise - sweating - adding heat - Energy - dilation - heat or cold - heat - Dehydration

Ans:dilation

If agenerator uses fossil fuel, then what does a generator use? Answer choices: - acid - engines - air - cycles - A kernel - water - fossil fuel - to move people
fossil fuel