Salt water is a homogeneous mixture or a solution.
Answer: it would be : C
Explanation
Be cause it is not a natural cause glaciers are water is and wind but not temperature
Answer:
Two stars (a and b) can have the same luminosity, but different surface area and temperature if the following condition is met:
(T_a^4)(R_a^2) = (T_b^4)(R_b^2)
Explanation:
The luminosity of a star is the total energy that produces in one second. It depends on the size of the star and its surface temperature.
L = σ(T^4)(4πR^2)
L is the luminosity f the star, T is the temperature of the surface of the star and R is its radius.
Two stars can have the same luminosity if the relation between the radius and the surface temperature is maintained.
To see this lets suposed you have 2 stars, a and b, and the luminosities of each one of them:
L_a = σ(T_a^4)(4πR_a^2)
L_b = σ(T_b^4)(4πR_b^2)
you can assume that L_a and L_b are equal:
σ(T_a^4)(4πR_a^2) = σ(T_b^4)(4πR_b^2)
Now, you can cancel the constants:
(T_a^4)(R_a^2) = (T_b^4)(R_b^2)
as long as this relation between a and b is true, then the luminosity can be the same.
Answer:
They preserve the entire fossil remain rather than there traces.
Explanation:
- Amber is a fossilized resin from an ancient forest. It used as a healing agent in folklore. It is a product of high pressure and temperature.
- They occur in a wide range of color and many geological records are found in amber hidden fossils. Its main property is to preserve the complete chemical and physical properties of the fossil.
- Oldest known amber was of an arthropod, often found in association with insects. The amber fossils are believed to have been derived from older Eocene deposits. Later formations of glacial drift.
- While a mold of fossil is formed by an animal, plane or other organisms which upon dying to get covered sediments and later its bones are decay due to chemical processes. Mold fossils tell traces of extinct organisms like trail track etc.
- Molds and casts are three-dimensional representations of organisms.
