<span>"At first, the group of investors were not impressed by young Calvin's concept for the new advertising campaign, but by the end of the presentation, everyone was on board with the plan."</span>
The thing that would mostly make the results of the experiment invalid would be the students themselves. No one is built the same, and the exact same food can have very different effects on different people.
Answer:
A. It contains fewer volatile gases.
Explanation:
Mafic lava have a composition of about 45-55% silica with high amount of Fe, Mg, Ca.
The silica content is quite low compared to those of granitic magma whose silica content can reach up to about 60%.
What determines the viscosity of magma is basically the silica content of the magma and the temperature of the magma. Viscosity is the resistance to flow.
The higher the silica content, the lower the viscosity and the higher the amount of volatile gases. Such type of magma is the granitic magma. Granitic magma due to their viscosity flows slowly.
The lower the silica content, the higher the viscosity and the lesser the presence of volatile gases in them. Such an example is Mafic magma. Mafic magma flows very slowly with low amount of dissolved gases.
Answer:
The answer is spongy mesophyll.
Explanation:
Between the upper and lower epidermis of a leave, you can find the so called mesophyll tissue which is rich in chloroplasts. There are two types of mesophyll tissue: the palisade and the spongy mesophyll. Whereas the cells of the palisade mesophyll are tightly packed, the cells of the spongy mesophyll are loosely packed.
Answer:
operates om the principle of temperature-induced resistance.
Explanation:
In physical quantities, the resistance of an electrical conductor can be correlated directly with the temperature of the material. The property for the change in the resistance with temperature is called the temperature coefficient of resistance. Mathematically, the resistance of a material is given as follows:
![R = R_{ref} [ 1 + \alpha (T - T_{ref})]](https://tex.z-dn.net/?f=R%20%3D%20R_%7Bref%7D%20%5B%201%20%2B%20%5Calpha%20%28T%20-%20T_%7Bref%7D%29%5D)
where R = conductor resistance at the temperature T.
Rreff = the conductor resistance at the reference temperature,
= temperature coefficient of resistance
T = Conductor temperature
Treff = reference temperature of the material.
From the equation, it can be seen that a positive coefficient for a material means an increase in the resistance of the material.
