(Question)
Q: What is a double membrane of the nucleus that encloses the genetic material? Choices: - cell wall - cell membrane - nuclear wall - nuclear enevelope A:
(Answer)
nuclear enevelope

(Question)
Q: Planting a row of trees around a field or erecting a fence on a sand dune helps prevent what form of erosion? Choices: - fire - water - rain - wind A:
(Answer)
wind

(Question)
Q: What is a measure of the force of gravity pulling on an object of a given mass? Choices: - scale - effect - solidity - weight A:
(Answer)
weight