Question

earth spends most of its time in which climate state?
a. ice-covered
b. moderate temperatures
c. warmer than today
d. constant temperature with no variation
ice-covered
moderate temperatures
warmer than today
constant temperature with no variations

Explanation:

Geological and climate records show that over Earth's 4.5-billion-year history, long periods (the vast majority of time) have been characterized by climates warmer than today, with only relatively short intervals of glaciation/ice-covered conditions. Moderate temperatures are a narrower state, and Earth's temperature has never been constant with no variation.

Answer:

C. Warmer than today