MN giải giúp em bài này với

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

Aremote community desperately needs more electrical energy. it is located in an area with the following characteristics: average wind speed of 15 – 20 km/hr some medium-sized rivers with slow-moving currents few coal deposits some oil exploration being conducted within 400 miles based on the above information, which energy source would be the most economical and safest for the community to pursue? a. fossil fuel b. hydroelectric c. nuclear d. wind

Why zebra fish experience similar genetic disease as human