All of the Following About A

question 50

Multiple Choice

All of the following about A.garhiare true EXCEPT that it

• A) was discovered in 1999 in Ethiopia, along with traces of animal butchery.
• B) adds a new potential ancestor to the human family tree.
• C) made pebble tools around 2.6 m.y.a., challenging the long-held belief that Homo habilis was the first toolmaking human ancestor.
• D) displaces Lucy as the most complete skeletal fossil specimen found so far.
• E) provides evidence that the thigh bone (femur) had elongated by 2.5 million years ago, a million years before the forearm shortened, to create our current limb proportions.

Understand how input device states affect PLC input module indicators.

Recognize the various status indicators found on PLC processor modules and their meanings.

Conduct verification procedures to confirm suspected wiring issues in PLC systems.

Utilize PLC programming tools for troubleshooting and debugging.