The different layers of the earth have different densities, and the seismic waves produced during an earthquake travel at different speeds through these layers. By measuring the different speeds, we can clarify the presence of layers within the earth, as well as their densities. Waves will travel faster through thinner layers, and slower through more dense layers.
Answer:
Heat conductivity
Explanation:When wool fibres are exposed to heat, moisture, and strain, they interlock and contract. Felting is aided by the scale-like exterior of the fibres. <u>Heat conductivity</u>: Since wool fibre is a weak conductor of heat, fabrics made from it are best suited for winter wear
<u>The function of a protein determined by:</u>
The shape determines the working of a protein. A protein's design is determined by its primary structure i.e the amino acid sequence. The amino acid sequence within a protein is decided by the encoding arrangement of nucleotide in the gene (DNA).
The role of a protein is utterly dependent on its three-dimensional architecture (other than when it caters as food). This framework may be disturbed by a number of agents thereby denaturing the protein:
- Variations in the pH (between charged amino acids the electrostatic interactions is changed).
- difference in concentration of salt (does the same).
- temperature change (higher temperatures decrease the strength of hydrogen bonds).
- reduction agent presence (disruption of S-S bonds among cysteines).
<span>Allergies are caused by D. reactions to antigens. Antigens are some kinds of toxins that can cause a reaction in your body, and that reaction is usually in the form of an allergy. The other options do not really have much to do with allergies, but rather other forms of diseases and illnesses. </span>