What do we call irregular Spanish verbs whose stem or root changes?

present-tense verbs

stem-changing verbs

preterit verbs

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

b. examine and describe cells

give me abc and i will get it for u.

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .