Answer:
D — All of them
Explanation:
The activation energy in a reaction is the minimum amount of energy required for a chemical reaction to take place. Since all the options are processes in a chemical reaction, D should be the answer.
Adhesion of water to the surface of a material will cause an upward force on the liquid. The surface tension acts to hold the surface intact. Capillary action occurs when the adhesion to the surface material is stronger than the cohesive forces between the water molecules.
Answer:
1 - producer, 2 - primary consumer, 3 - secondary consumer, 4 - tertiary consumer
Explanation:
<span>The skull, vertebral column, and thoracic cage are the main part of the axial skeleton.
So, the answer is that the skull, vertebral column, and thoraic cage form the axial skeleton.
If you look at a diagram of the axial skeleton you will see the bones of the head (skull) , the spine (vertebral column), and the rib cage (toracic cage)
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Chemical properties can only be tested if you change the substance
