Help with the question. What is the 21st presidents name and how did he get elected?

JK not a real question.

Kuhl found that babys brains are most open to learning the consonants in their native language at what age? and vowels at what age?

The occupational safety and health administration requires employers to provide fall protection to construction workers who are working on surfaces with unprotected sides and edges feet or greater above the lower level.

What percentage of the earth's water is available for use by living things?