Answer:
The answer is 4. Background Information.
~Hoped this helped~
~Brainly, please?~
It is pretty simple.
Exercise 1:
1. How brave those firefighters were!
2. What authors do you like best?
3. The art teacher will show us how to make dyes from natural ingredients like roots.
4. Hold this bandage against the wound and press firmly.
5. Will Nayati enter the marathon again this year?
6. Who was that on the telephone?
7. The Fourth of July fireworks are fantastic!
8. Tomorrow my mother is taking me to the game.
9. When is the bus coming?
10. Wow, what a great movie that was!
Answer:
First thing you do is turn the revolving turret (2) into the lowest lens is in position, when you do this you will hear a click. Next, you place the slide onto the stage (6) and fasten it with the clips. While doing this be extremely careful not to tough the slides, if you do make sure to use a special lens paper to clean them. Once the slide is in place, check the objective lens (3) and the stage from the side, turn the focus knob (4), this moves the stage, as far upwards as it will go without touching the coverslip. After this is completed, look through the eyepiece (1) and adjust the focus knob until you can see the image clearly. You can also adjust the condenser (7) for the greatest amount of light. Now that the light is adjusted, move the microscope slide until your sample is in the center, making it easier for you to see. When you have a clear image of the sample, you can change to the next object lenses, while doing this, you may need to readjust the sample and condenser. When finished, lower the stage, click the low power lens into position and remove the slide.
** I also added a picture with the numbers labeled **