Based on the information in Text 1, which sentence explains how the sleep habits of teenagers are impacted by school start times?
A Teenagers need more sleep than younger students, so when school starts too early, students of all
ages suffer.
B. It is natural for teenagers to stay awake late at night and sleep late in the mdoning rather than go to
bed early and wake up early, so teens do not get enough sleep when school starts early.
C. Teenagers often find themselves with too many activities, so they are forced to stay awake late into
the evening and have trouble staying awake during early classes when school starts earlier.
D. It is hard for teens to wake up in the morning, regardless of the time, so delaying school start times
allows them to wake up more naturally.

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes

Due tonight 10 points will mark brain

Is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance