What is the name of the gas used in an air conditioner?

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This in-between phase of stellar nurseries and star formation in stellar evolution is when the gathered dust is still condensing to form a star.

A. Alpha Stage B. Stellar Genesis C. Protostar D. Star of Adam...

All of the following are electromagnetic radiations except__________?

A. Red light B. Sound waves C. X-Rays D. Photon...

Arthritis is a disease of ?

A. Lungs B. Blood C. Disorder of the Joints D. Liver...

Which is the anti-coagulant substance in blood?

Fibrinogen Heparin Thrombin Globin...

Stripes on each side of “Grévy’s Zebra” is about_________?

A. 20+ B. 30+ C. 80+ D. 36+...