1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sati [7]
3 years ago
6

Index Fossils can help scientists determine the age of a rock layer because they are present in every rock layer since the begin

ning of life on Earth.
Physics
1 answer:
irakobra [83]3 years ago
8 0

Answer:

They were only present during a short time frame, so it helps to narrow down the age of the rock layer.  

Explanation: hope this helps :)

You might be interested in
PART 2
Vinvika [58]

Answer:

Explanation:

Ball

There is no signal for a called ball. Instead, simply verbalize the call, "ball". Call the ball while still down, then come up. On ball four, don't point to first base, just say "ball." If the batter doesn't head toward first base, you can simply say to him "that's four."

Strike

Signal strikes with your right hand. Use the traditional clenched fist ("pounding the door"), or signal with your hand/finger shot out to the side. On a called strike, verbalize sharply; everyone should hear. On a swinging strike do not verbalize; simply give the signal.

Safe

Extend both arms together in front of you and then give a quick, sweeping motion outward, roughly parallel to the ground, palms down. On close plays, you can also verbalize the call, "safe", or "he's safe". This helps sell a close call. You can also verbalize information to help sell an extremely close call, things like "Safe - he's under the tag", of "Safe - he pulled his foot." On obvious calls ("stadium calls") don't verbalize the call.

Out

Form a hammer with a clenched right fist and deliver a quick, sharp blow. Some degree of personal style is allowed on the out call, as long you are not distracted from seeing any continuing action. If necessary, verbalize and signal additional information to sell a close call, like "off the bag" or "on the transfer."

Fair Ball

Point the right hand toward fair territory. Never verbalize "fair ball." On a close call, to emphasize the call, stab your arm into fair territory multiple times emphatically.

Foul Ball

The signal for foul ball is the same as for "Time" or other dead ball situation: Raise both hands and call loudly "Foul." Make the call loud and sharp, so everyone hears. Note that, once verbalized, you cannot reverse a call of foul ball.

Play

Point at the pitcher with the right hand with a stabbing motion and call "Play."

You must put the ball back in play following every time the ball goes dead, whether foul ball, hit-by-pitch, called "time", or other reason. When the pitcher has the ball and is ready (he must have engaged the rubber), and the catcher is in the catcher's box and is also ready, point and call "play". Under no circumstances should you allow the pitcher to go into his windup until you have called "Play".

Time

Raise both hands and call "Time" in a loud voice. Make the call loud and sharp. It is essential that everyone on the field hear you.

Important: When any umpire calls "Time," all other umpires should echo the call by also signaling and, if there is play in progress, also verbalizing "Time."

time

(Time with a small "t"). There are occasions when time is out, but "Time" has not been called. An example is when the pitcher is ready but the batter is not yet set; in this case, the plate umpire might put up his hand as a stop sign to the pitcher, signaling him to wait. It is important to understand that when you put up a stop sign like that you have called time. So you must put the ball back in play.

Important: Be very careful with this small-"t" Time. Be certain, for example, that all continuous play has come to a stop, that runners are back to their bases, and that no sudden actions are imminent. You're in a world of hurt if you've got a hand up signaling time, just as a runner breaks and a bang-bang play develops, an overthrow occurs, a run scores, and THEN you have to get everyone's attention to bring it all back.

The count

Indicate pitch count using the left hand for balls and the right hand for strikes. On fields that do not have scoreboards, give the count frequently; always give the count on an "action" pitch (with three balls and/or two strikes). Call the count loudly, so both benches (and base coaches) can hear it clearly. Finally, don't abbreviate the count by verbalizing things like "twenty-two" for two and two, or saying "full count" when the count is three and two.

3rd strike not

caught

Give the strike sign, but do not call or signal the batter out. Instead, clear the catcher and give the safe sign.

5 0
3 years ago
Read 2 more answers
Convert 41.3 kilocalories into joules.
LiRa [457]

Explanation:

41.3 kilocalories = 172 799.2 joules

hope \: it \: will \: help

3 0
3 years ago
A motorcycle is moving at a constant speed of 40km/h. How long does it take the motorcycle to travel a distance of 10km?
nlexa [21]
Time = distance/time
time(hours)= 10/40
time(hours)=0.25
=15 minutes
7 0
3 years ago
If 4 resistors are wired in series, what is the equivalent resistance?
maria [59]

the 4 resistor wired in series is equal to 0.639 ohms

3 0
3 years ago
The object moves with _____ from A to B. It _____
ELEN [110]
Constant acceleration
8 0
3 years ago
Other questions:
  • A ball has a mass of 33.6 grams and a volume of 14.0 cubic centimeters (cc). What is its density?
    6·2 answers
  • What happens in this circuit if one of the light bulbs is unscrewed?
    15·2 answers
  • The amount of blood the heart pumps out in one beat is called
    14·1 answer
  • What do you meaningful by ma of a levers is 3 vr of a lever is 4 and effect of a machine is 60%?​
    12·1 answer
  • Which elements have one valence electron?
    8·2 answers
  • A body on a 20m high cli drops a stone. One second later, he throws
    13·1 answer
  • A construction worker moved a crate full of equipment 15,0 m using a constant force
    13·1 answer
  • The principles of ____ law are demonstrated when pressure remains constant, but temperature and volume rise and fall together.
    10·1 answer
  • Two pistons are in an enclosed volume with fluid in between them, such that
    9·1 answer
  • The psychological experience of pitch is related to a sound wave’s:.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!