Answer:
this is true
Explanation:
the desert the plains and swamps are all ecoystems
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:
The effects of the Industrial Revolution on agriculture can best be seen in the invention of mechanized farm equipment.
Explanation:
A is not correct because using animals as labor is an ancient method used in agriculture, and it is also in no way related to the Industrial Revolution.
B is not correct because it represents a planting method that doesn't necesseraly require any help from mechnization.
C is correct because the mechanized equipment is what was introduced in agriculture and propelled it to new levels.
D is not correct because the introduction of hybridized crops has been a result of the development in other spheres.
The answer is that they arrived in Mesoamerica in the 13th century
Answer:
4.
Explanation:
Number 4 would benefit egypt as they would have cheaper electricity
