Why is it hard to sculpt with sand

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

True or false multiple lane changes must be done individually going through the same procedures for each lane change