I believe the answer is B. I say Natural gas because the materials used for the natural gas can run out. Renewable energy sources are sources of energy that are continuous and do not run out. Biomass is gotten from waste of living things, as long as there are living things, it lasts. The wind keeps coming, so it provides more energy. Geothermal energy is the energy generated and stored in the earth. There will always be heat on earth. Hope i helped. Have a nice day. Happy new year.
I believe it is 137 kg. (the third one down)
<em>Cartilaginous joints</em> is not a functional classification for joints.
Answer: Option 2
Explanation:
The joints are classified based upon their <em>structure and function</em>. Based upon the composition as well as presence or absence of the cavity, the joints are <em>structurally</em> classified as:
- Fibrous joints
- Cartilaginous joints
- Synovial joints
On the other hand, based upon the functions performed by the joints, the <em>functional </em>classification of joints are as follows:
- Diarthrosis
- Amphiarthrosis
- Synarthrosis
Thus it is inferred that, cartilaginous joint is structural classification of joints, not functional.
