Free STAAR Practice Test Questions | State of Texas Assessments of Academic Readiness

Question # 10

Which gas is essential for human respiration?

Options:

Nitrogen

Oxygen

Carbon dioxide

Hydrogen

Viewing question 10 out of 72 questions

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STAAR Overview

Name	State of Texas Assessments of Academic Readiness
Code	STAAR
Vendor	K-12
Certification	Texas Education Agency (TEA)

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