Which statement about the alkali metals is correct? A. They are usually gases.
B. They are extremely unreactive.
C. They are located in the left-most column of The Periodic Table
D. They form negative ions with a -1 charge

Which statement best explains the relationship between an area is geography and the temperature of its surface water

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles