Which of the following agricultural products requires the least amount of energy? beef cattle
dairy cows
wheat
both (a) and (b)

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

In which squares should the phrase "green pods" appear a) a and d b) b and e c)a,c, and d d)a,b,c,d and e