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
raketka [301]
3 years ago
5

2. Why do you think corals have declined since 1977?

Physics
2 answers:
jeka943 years ago
7 0
Coral and fish communities showed dramatic declines from 1977 to 1996 due to massive harbor construction and suboptimal land management practices on the watershed. More recently, corrective measures in the form of watershed stabilization and fishing regulations have been implemented.
nikdorinn [45]3 years ago
3 0

Answer:

Written below.

Explanation:

Coral and fish communities showed dramatic declines from 1977 to 1996 due to massive harbor construction and suboptimal land management practices on the watershed. More recently, corrective measures in the form of watershed stabilization and fishing regulations have been implemented.

Coral reefs are endangered by a variety of factors, including natural phenomena such as hurricanes, El Niño, and diseases; local threats such as overfishing, destructive fishing techniques, coastal development, pollution, and careless tourism; and the global effects of climate change—warming seas and increasing levels.

You might be interested in
S A block of mass M is connected to a spring of mass m and oscillates in simple harmonic motion on a frictionless, horizontal tr
Elina [12.6K]

The period of oscillation is T = 2 * pi * sqrt ( ( m2/3 + m1) / k )

<h3>What is period of oscillation?</h3>

This is the time in seconds it takes to complete one oscillation. where an oscillation is a repetitive to and fro motion. period if the inverse of frequency and both are basic when calculation motion in simple harmonic motion.

The period of oscillation is given as T

T = 2 * pi * sqrt ( m / k )

where

m = mass on this case mass of the spring will be inclusive to the mass of the block such that we have:

m1 = mass of the block

m2 = mass pf the spring

k = force constant of the spring

including the two masses to the period gives

T = 2 * pi * sqrt ( ( m2/3 + m1) / k )

Read more on period of oscillation here: brainly.com/question/22499336

#SPJ4

7 0
2 years ago
Force vectors P and Q have magnitudes of 30 N and 50 N respectively. Which of the following is NOT a possible answer for the mag
Thepotemich [5.8K]

30 N can not be a possible answer for the magnitude of the resultant of these vectors.

<h3>Resultant vector</h3>

The term resultant vector refers to the result obtained when two or more vectors are combined in magnitude and direction. It is that singular vector that has the same effect in magnitude and direction as two or more vectors acting together.

The resultant vector can not be be obtained algebraically rather it must be obtained geometrically. Hence, 30 N can not be a possible answer for the magnitude of the resultant of these vectors.

Learn more about resultant vector:brainly.com/question/24802757

6 0
3 years ago
Lena helps a child who is choking on his food. Which reliable method prepared her for helping with this injury?
Ivanshal [37]

knowledge of first aid ... eg St John Ambulance, Red Cross etc. I think that everyone in a school should be taught First Aid.

7 0
3 years ago
Read 2 more answers
Hans Eysenck makes a connection between __________ and __________in explaining personality development. A. genetic factors . . .
tekilochka [14]
The answer is A, genetic factors...conditioning. I just took the test. Good luck!!
6 0
4 years ago
Read 2 more answers
A block of mass 10kg is suspendet at a diameter of 20cm from the centre of a uniform bar im long, what force is required to bala
lana [24]

Answer:

4 kg of force

Explanation:

Force = (mass x distance to fulcrum) / length of fulcrum to end

Subsitute values

F = (10 x 20)/50

F =4

4 0
3 years ago
Other questions:
  • An athlete executing a long jump leaves the ground at a 28.0º angle and travels 7.80 m. (A) What was the takeoff speed?
    10·1 answer
  • Suppose I have a vector that is 7 units long and that makes an angle of +30 degrees from the positive x-axis. I want to add to t
    14·1 answer
  • What quantity do units represent in a value?
    8·2 answers
  • A source emits a sound and is represented by the red dot in this map. Four people are located around the source, and the circles
    13·2 answers
  • Ted wants to hang a wall clock on the wall by using a string. If the mass of the wall clock is 0.250 kilograms, what should be t
    5·2 answers
  • A circular wire loop of radius 12.1 cm carries a current of 2.16 A. It is placed so that the normal to its plane makes an angle
    9·1 answer
  • find the x-component of this vector 18.4,0.250. Remember, angles are measured from the +x axis. Find the x-component and y-compo
    6·2 answers
  • 11. Which of the following is a proper unit of
    13·2 answers
  • What is the meaning of the reference point in electric potential?.
    8·1 answer
  • Written differently
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!