HELP 10 POINTS Once per year, at noon, the sun is directly above these lines. On the summer solstice, the sun is right above the Tropic of Cancer. On the winter solstice, the sun is right above the Tropic of Capricorn at noon.

What question is answered in this paragraph?

A. Where is the Tropic of Cancer?
B. What is the Tropic of Capricorn?
C. How are the summer solstice and the winter solstice different?
D. Why are the summer solstice and winter solstice important?

You have been asked to lead a demonstration for the undergraduate microbiology lab course about the uses of negative staining when studying bacteria. a "negative" stain does not stain the bacterial cell itself but stains the space between cells. under magnification, the acidic (negativelycharged) nature of the stain will be repelled by the negatively charged bacterial cell wall and willleave the cell colorless in a stained background. negative stains are used primarily to reveal the presence of negatively charged bacterial capsules; therefore, they are also called capsule stains. encapsulated cells appear to have a halo surrounding them. the negative stain procedure does not require heat fixation, which limits any chances of alteration in bacterial cell shape and size. the bacterial suspension is added to a drop of stain, such as nigrosin or eosin, and drawn across the glass slide using a coverslip.nigrosin staining-not safranin staining-of klebsiella pneumoniae will allow for the visualization of the cell shape and the determination of the presence of a capsule.true/false

What best explains the inability for life to exist in earth early atmosphere

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called