A man is smoothing a substance on a roof with a trowel. He moves quickly to smooth out dents. the man

OPTIONS:
- moves to the bottom and smooths back up the top.
- stains the roof with the substance.
- blows on a container of lighter fluid.
- uses a tool to hold the roof up.

moves to the bottom and smooths back up the top.

The girl begins facing the camera and brushing her teeth, leaning in to the camera at one point before leaning back to continue brushing teeth. the girl

OPTIONS:
- finishes brushing her teeth and wipes off the spoon.
- then turns towards the bathroom mirror and spits into the bathroom sink, then returns to brushing teeth and facing the camera again.
- talks to the camera and then sticks her tongue out, proceeds to have many spit spit ups and ends by holding up a toothbrush in her mouth while putting toothpaste on it.
- continues brushing her teeth while balancing herself on the rung on the swing on the underwater side.

then turns towards the bathroom mirror and spits into the bathroom sink, then returns to brushing teeth and facing the camera again.

How to measure oxygen saturation using pulse oximeter
Understand the relationship between oxygen and the blood.
Oxygen is breathed into the lungs. The oxygen then passes into the blood where the majority of the oxygen attaches to hemoglobin.

OPTIONS:
- Oxygen is produced as the presence of oxygen in the body. As long as the body does not expend oxygen in the blood, of course, there is no greater amount of oxygen coming to the hemoglobin, and a large percentage of the oxygen is produced in hemoglobin.
- Hemoglobin is a protein located inside our red blood cells that transports the oxygen through the bloodstream to the rest of our body and tissues. In this way, our body is given the oxygen and nutrients it needs to function.
- This may seem like a very useful exercise if you find that oxygen condenses below or above the heart. The difference in oxygen concentration between oxygen and the hemoglobin is that oxygen is concentrated.
- One study showed that oxygen intake maximizes oxygen critical to the body's digestion, which aids in stabilizing and regulating cardiovascular function (as the body uses oxygen). Observe the amount of oxygen in a given menstrual cycle.

Hemoglobin is a protein located inside our red blood cells that transports the oxygen through the bloodstream to the rest of our body and tissues. In this way, our body is given the oxygen and nutrients it needs to function.

How to answer the phone politely
Pick up after 2 or 3 rings.
When you're answering calls at work, let the phone ring 2 or 3 times before your answer it. If you let it ring more than 3 times, the caller may become impatient and feel that their call is being ignored.

OPTIONS:
- On the other hand, if you pick up after the first ring, the caller may be taken aback by the quick answer. They may not have had enough time to compose their thoughts.
- The caller may think of using telephone pickup. However, this is not an optimal method, so you may need to hang up instead of answer.
- For the same reason, you should not answer after 2 or 3 rings; they will immediately pick up. Calling from home, so long as you come home from work to answer the phone or leave it at home with the ringer off, can disrupt your nightly sleep routine.
- Other people can hang up after 2-3 rings. If you end up answering the phone on the other person's end, give it a try and see what happens.
On the other hand, if you pick up after the first ring, the caller may be taken aback by the quick answer. They may not have had enough time to compose their thoughts.