Answer:
The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger. Eventually, the clump of dust and gas gets so big that it collapses from its own gravity.
Explanation:
They took wet x-ray diffraction of the DNA and found that it was shaped in a helix form, which turned out to be a double helix which is what we know today.
The correct answer is known as "Meningitis"
Meningitis is is an infection of the membranes (meninges) surrounding your brain and spinal cord. The swelling from the illness usually triggers signs which includes headache, fever and a stiff neck. Most cases of meningitis within the U.S. are because of a viral infection, however bacterial and fungal infections are other causes. some cases of meningitis enhance with out remedy in some weeks. Others may be fatal and require immediate antibiotic remedy
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