Three variables can be used .
1. Sun 2. Moon 3. Earth
These are suggestions that lizzie can control:
1.<span> Discover how long the Earth takes to orbit the Sun
2. how many hours it takes the Earth to spin around once on its own axis, 3. how long the Moon takes to orbit the Earth</span>
The remains of a dead organism
Answer:
He should make identical stains on T-shirts and see whether different parts of the lemon will remove the stain
Explanation:
The Central Nervous System<span> (CNS) includes all of the nerves of the Brain and Spinal Cord.</span>
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The Peripheral Nervous System (PNS) includes all of the nerves both sensory and motor connecting the CNS to the muscles, organs, and sensory structures of the body.</span>
