The sun appears to cross the plane of Earth's equator
when it reaches either one of the "equinox" points in the sky.
At those times, the lengths of day and night are nominally equal
everywhere (except at the poles), and the occasions are marked
as the beginning of Spring and Autumn.
The correct answer is False. A nation's political stability affects how well they can go about child care.
C. Clay soil has a higher porosity than sandy soil.
Explanation:
Maller soil particles have smaller pore spaces, but a greater number of them, which leads to higher surface tension and high % porosity.
Hi. "Tidal wave" suggests a wave associated with the ebbs and flows related to the relative positions of the earth, moon and sun. These rises and falls relative to mean sea level are periodic and easily predictable. But the enormous wave generated by an earthquake is probably even less easy to predict than an earthquake and of no regular (that is, periodic) recurrence that anyone knows of. But I think "tsunami" is not too bad a name for such earthquake-generated waves as tsunami does not suggest any strong link with the relative positions of the earth, moon and sun.
În timpul unei eclipse de Lună, Pământul trece între Lună și Soare, determinând Pământul să-și arunce umbra asupra Lunii.
Veți observa că umbra pe care o produce este rotundă. Chiar dacă Pământul ar fi plat, dar în formă de disc, nu ar arunca nici acest gen de umbră. „Singura formă care poate produce o umbră curbată, indiferent din ce direcție este plasată lumina, este o sferă”, explică Thaller.
