For the first one, electrons travel around the nucleus in fixed energy levels with varying energies.
Second one, protons, neutrons, and electrons have a mass, but electrons have far less mass
Third one, cations and protons
Fourth, not sure.
Since feces are alkaline elements, thet raise water's pH levels. Since feces have a pH level no higher than 7, they are acidic.
A - since this beaker contains fish feces, the red litmus paper will remain red, and the blue one will start to get red
B - since there is nothing affecting the water's pH in this beaker, both litmus papers will remain the same colour, since water is a neutral liquid.
Hope it helped,
BioTeacher101
Answer:
Blood pressure increases with increased cardiac output, peripheral vascular resistance, volume of blood, viscosity of blood and rigidity of vessel walls. Blood pressure decreases with decreased cardiac output, peripheral vascular resistance, volume of blood, viscosity of blood and elasticity of vessel walls.
Explanation:
Answer:
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How does human activity affect large-scale climate change?
A.) Human activities create and destroy habitats
If you think about it - we destroy animal habitats to create our own housing and businesses. Hope this helps
