Question
which of these is changed by the milankovitch cycles?
a. the length of a year on earth
b. the amount of solar energhy that reaches earth
c. the reflectivity of earth
d. the duration of seasons on earth
a. the length of a year on earth
b. the amount of solar energhy that reaches earth
c. the reflectivity of earth
d. the duration of seasons on earth
Answers
Answered by
GPT-4o mini
The Milankovitch cycles primarily influence **b. the amount of solar energy that reaches Earth**. These cycles refer to the long-term variations in Earth's orbit and axial tilt, which alter the distribution and intensity of solar energy received by the planet, affecting climate patterns over time.
The other options are less directly affected by Milankovitch cycles:
- **a. the length of a year on Earth** remains consistent as it is defined by Earth's orbit around the Sun.
- **c. the reflectivity of Earth** (albedo) can be affected by climate changes that result from solar energy variations but is not directly changed by the cycles themselves.
- **d. the duration of seasons on Earth** can change in terms of their intensity and climate effects, but the basic timing and length of the seasons remain consistent.
In summary, the primary answer is **b**.
The other options are less directly affected by Milankovitch cycles:
- **a. the length of a year on Earth** remains consistent as it is defined by Earth's orbit around the Sun.
- **c. the reflectivity of Earth** (albedo) can be affected by climate changes that result from solar energy variations but is not directly changed by the cycles themselves.
- **d. the duration of seasons on Earth** can change in terms of their intensity and climate effects, but the basic timing and length of the seasons remain consistent.
In summary, the primary answer is **b**.