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Viktor [21]
3 years ago
7

Ingenhousz found that air would be purified only when green plants were in

Biology
2 answers:
sveticcg [70]3 years ago
6 0
Sunlight because that’s what they need to live
iris [78.8K]3 years ago
5 0
Sunlight because of photosynthesis
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The above pictures show the interaction of pollinators (like insects, birds, and bats)
malfutka [58]

Answer:

The pollinators help spread the pollen of the flowering plants to help them reproduce. If the flowering plants blended into their surroundings, the pollinators would not be able to identify the flowering plants, and the plants would eventually die off or become extinct.

Explanation:

6 0
2 years ago
You are watching sleep researchers monitor the sleep of a normal adult. The participant is hooked up to an EEG. What brain waves
guajiro [1.7K]

Answer:

The correct answer is option b. "Alpha eventually replaced by theta".

Explanation:

Electroencephalogram (EEG) techniques allows researchers to monitor the phases of sleeping according of what brain waves are seen in the equipment. A normal adult connected to EEG will respond with alpha waves during a wakeful state. However, as the person becomes drowsy and enters to the first stage of sleep, the alpha waves will be eventually replaced by theta waves. Theta waves are the dominant waves during sleeping, and also could be seen during deep meditation.

8 0
3 years ago
Name 3 characteristics of each physical state of matter.
Andreas93 [3]

Answer:

solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume. change of state: When matter is converted from one of the three states (example: solid, liquid, or gas) to another state.

Explanation:

5 0
3 years ago
Read 2 more answers
5
xeze [42]

Answer:

I would say B is the answer.

Explanation:

An applied force is a force that is applied to an object by a person or another object. Example: pushing a box to the other side of a room.

A normal force is a force that surfaces exert to prevent solid objects from passing through each other. Example: resting a book upon a table.

Drag is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid. This doesn't really match the force we use.

However, an attractive force is a force by which one object attracts another. Example: two magnets pulling/colliding together. This is a good example of a force we exert on objects when it is pulled toward us.

4 0
2 years ago
Which of the following was a control variable in this experiment?
DIA [1.3K]

Answer:

<em><u>b</u></em>

Explanation:

<em><u>mark</u></em><em><u> </u></em><em><u>me</u></em><em><u> </u></em><em><u>as</u></em><em><u> </u></em><em><u>brainleist</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em>

7 0
2 years ago
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