indicates caution A background on a safety sign is used to identify a definite hazard; for a potential hazard. Select one: O a. Red; green Ob Blue, red O c. Yellow, blue O d. Red; yellow​

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

What is the source of continuous heat and energy that we receive from the sun

The bone of a dinosaur and the imprint of a leaf are examples of which kind of fossils? a) index b) body c) amber d) trace