Answer:
A
Explanation:
Radioactive dating uses carbon isotopes to determine the age of a material.
Chloroplast is what help the plant get sunlight and it gives the plant color so if u took this out the plant wouldn't get proper sunlight and wouldn't have much color.
D. To reduce the chance of error.
Doing an experiment multiple times will reduce the likelihood of it having an error.
Answer:
The sound will reach my ear in a shorter time in Scenario 1.
The speed of sound waves in solids is faster than it is in gases.
Explanation:
The sound which is produce due to hitting of metal bar with a drumstick reaches to the ears in short time because sound is a longitudinal wave which requires or needs medium for its propagation from one place to another and in solids the particles of medium are close to each other as compared to air so the sound travels faster in solid materials as compared liquid and gases and takes less time to reach my ears.
Use sterile gauze and wipe away from the site of injury
