A group of students is trying to grow a kelp plant in a tank without any others animals. They use a temperature regulation system to keep the water temperature at about 12°C. They bury the holdfast below the soil that has been enriched with nutrients and place the plant near a window in direct sunlight. However, over a few weeks the kelp plant withers and dies. Why did this happen?
A.
The kelp draws nutrients from the water rather than the soil, which it does not have available.
B.
The water temperature is too low for the kelp plant to survive.
C.
Kelp cannot grow in direct sunlight and need to be kept in a shaded location.
D.
Kelp only grows in freshwater, and salt water is harmful to kelp.

Schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would  notbe written on computer in this day and age.many schools now have a 1-to-1 computer policy, and many districts and states in the united states have mandated computers or ipads across the state for every student,  including los angeles, the second largest school district in the country.but the thing is, when they tried it in la, it wasn't the success they hoped for. that's because the tablets weren't used as much as they expected. rather, it appeared there was a gap between the digital native's love of technology and their use of it in the classroom.this conflicted relationship with computers is also underscored by much of the literature on education. it is also highlighted in professional development and conferences such as  edutech.