Calculate the gradient between X and Z and state your answer in the space below as a ratio or as decimal fraction.

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

Ahis which describe the horizons in a soil profile? check all that apply. horizon a is mineral deficient. bedrock lies below the soil layers. te horizon o forms from organic material, horizon b undergoes the least amount of change. horizon c is least affected by the soil formation process.

The english language is part of which language family? a. alatic b. dravidan c. indo-european d. khoisan