2. Why do you think corals have declined since 1977?
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.
I'll give you 23 points thingy if you do this for me
Answer:
B
Explanation:
1. The lamp is using electrical energy to produce light energy which can possibly turn into thermal energy due to the lighbulb heating up
2.B electrical to mechanical
How can you increase the rate of a reaction? Select all that apply. *
Introduce a catalyst
Increase temperature
Increase the concentration of products
Decrease concentration of reactants
Answer:
- Increase the concentration of the reactants
-increase the temperature
- introduce a catalyst
The rate of reaction is increased by:-
Increase the concentration of the reactantsincrease the temperatureintroduce a catalyst.What is the rate of reaction?The speed at which a chemical reaction occurs is known as the reaction rate or rate of reaction. It is proportional to the rise in product concentration per unit of time and the fall in reactant concentration per unit of time. Reaction times can differ wildly.
A chemical reaction is a procedure that causes one group of chemical substances to change chemically into another.
The rate of a chemical reaction can be increased by Increasing the concentration of the reactant by increasing the temperature and by introducing a catalyst.
Therefore, the rate of reaction can be increased by doing the actions explained above in the answer.
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Why is pH so important to maintain life?
A small change in pH in the ocean can be very harmful to sea life
Human blood is kept at a constant pH otherwise we would die
The pH of soil is very important for plant to be able to grown in it
Or all the above
URGENT!!
What occurs when the trough of one light wave meets the crest of another lightwave?
destructive interference
constructive interference
wave building
wave destruction
Answer: destructive interference
Explanation:
help asap pls and thank you
1. James Naismith
2. 1891
3. City College of New York
Gregor Mendel finished his pea plant experiments in 1863 and published his results in 1866. However, few scientists saw Mendel's paper for three decades. Even after all that time, Mendel's discoveries revolutionized the field of genetics. What did Mendel discover about the principles of heredity? Choose the two statements that apply. Select 2 correct answer(s) Question options: A Individuals get one factor for a trait from each parent. B Genetic material is genes on DNA. C A dominant factor can hide the expression of a recessive factor when both are present. D Mothers contribute factors for some traits while fathers contribute factors for others. if you do not know do not answer or you will be reported selet two answer
Answer:
it would be Individuals get one factor for a trait from each parent. and dominant factor can hide the expression of a recessive factor when both are present.
Mendel discovered about the principles of heredity: A) Individuals get one factor for a trait from each parent and C) A dominant factor can hide the expression of a recessive factor when both are present.
What are Mendel's discoveries revolutionized the field of genetics?Gregor Mendel uncovered the basic principles of inheritance through his study on pea plants. He concluded that genes are inherited from each parent as separate, paired units. Mendel observed how parental genes separated and if they showed up as dominant or recessive qualities in the children. He was aware of the mathematical patterns passed down from one generation to the following.
Mendel's Laws of Heredity are typically expressed as follows:
1) The Law of Segregation: A gene pair determines each inherited trait. So that each sex cell only contains one of a pair of parental genes, parental genes are arbitrarily distributed to the sex cells. Therefore, when sex cells combine to form offspring during fertilisation, they receive one genetic allele from each parent.
2) The Law of Independent Assortment: Different qualities' genes are grouped independently of one another so that inheriting one trait does not affect inheriting another.
3) The Law of Dominance states that an organism with two possible gene variants will express the dominant form.
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what is this ???????????
Answer:
A.
Explanation:
Directions: Imagine that you are either a Confederate or Union soldier alive during the Civil War. Write a short note to your family describing one of the important events from the Civil War. (Keep in mind the side that you are on.) On the front, draw an illustration of the event and include a short greeting.
HELPPP MEHH PLZZZZ
Answer:
Hey guys...I Miss you very much.I wish i could come home.But i have a mission to complete and i have to complete it. Tell the kids i said hi and i live them very much
Explanation:
GREETING: Hey family i miss you all very much i hope you guys are ready for me to come home.
A cyclist turns a corner with a radius of 50m at a speed of 10m/s. What is the cyclist's acceleration?
Answer:
2 m/s^2
Explanation:
a = v^2/r
a = (10m/s)^2 / 50m
a = 2 m/s^2
Leave a like and mark brainliest if this helped
Leave a like and mark brainliest if this helped
A cyclist turns a corner with a radius of 50m at a speed of 10m/s. The cyclist's acceleration is 2 m/s².
What is acceleration?The rate at which an item changes its velocity is known as acceleration, a vector quantity. If an object's velocity is changing, it is acceleration. The net acceleration that objects get as a result of the combined action of gravity and centrifugal force is known as the Earth's gravity, or g. It is a vector quantity whose strength or magnitude is determined by the norm and whose direction correlates with a plumb bob.
a = v²/r
a = (10m/s)² / 50m
a = 2 m/s²
A cyclist turns a corner with a radius of 50m at a speed of 10m/s. The cyclist's acceleration is 2 m/s².
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Why are ORGANS classified?
Answer:
An organ is a group of tissues with similar functions. ...
A given organ's tissues can be broadly categorized as parenchyma, the tissue peculiar to (or at least archetypal of) the organ and that does the organ's specialized job, and stroma, the tissues with supportive, structural, connective, or ancillary functions.
Explanation:
help with 3 and check the other ones please :(
Is Earth's mantle denser than the crust? PLS HURRY
The mantle, which contains more iron, magnesium, and calcium than the crust, is hotter and denser
Explanation:
because temperature and pressure inside the Earth increase with depth
17) PLZ HELP MEEE ASAP
i need help asap
Answer:
answer c because it is over halfway in the shade as you can see rn it is halfway showing moon and not so after it will be the after pic of c.
Explanation:
Answer:
It's A or C
Explanation:
In an experiment, you are studying the relationship between the force on a toy car and the change in motion, or acceleration, of the car. You place 50 N force on the car. Then using the same car you apply 100 N of force. You repeat this several times, increasing and decreasing the force on the car while keeping the mass of the car the same. whats the independent variable?
Answer:
naruto
Explanation:
2 Physic Questions For 20 Points ✨
1. Pick a planet (other than Earth) and describe 5 characteristics that you know about it. Be as specific as possible.
2. What are various features of the moon and how did they form?
All answers need an explanation
Sometimes people refer to Mars as the Red Planet. Because of the rusty iron in the earth, it is red. Mars features weather, polar ice caps, canyons, volcanoes, and seasons just like Earth. Its atmosphere, which is composed of carbon dioxide, nitrogen, and argon, is extremely thin. These define Mars' characteristics.
These are some of the characteristics of the moon, which is the only natural satellite of Earth and the nearest huge celestial body. It is a spherical rocky body that revolves around Earth in a somewhat eccentric orbit at a mean distance of around 384,000 km (238,600 miles), perhaps with a tiny metallic core. It has a 1,738 km (1,080 miles) equatorial radius.
What is planet ?A celestial body inside the Solar System that meets the following criteria is referred to as a "planet": (a) it must be in orbit around the Sun; (b) it must have enough mass to overcome rigid body forces and take on a hydrostatic equilibrium form that is almost circular; and (c) it must have cleared the area in and around its orbit.
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i swear this is the last question
Which of these is NOT a way to think about finding ‐12−7?
A)The number 7 units to the left of ‐12 on the number line
B)The negative distance between ‐12 and 7 on the number line
C)Changing the signs and the operation: 12+−7
D)The addition expression: −12+−7
PLSSSSSSSSSSSSS
Answer:
C
Explanation:
12+-7=/=-12-7
12+-7=5
-12-7=-19
Answer:
the answer is c
Explanation:
List the different levels of classification from broadest to most specific.
Answer:
The levels of classification used are: kingdom, phylum, class, order, family, genus, and species.
Explanation:
a 0.15 kg baseball has a momentum of 0.78 kg*m/s just before it lands on the ground. What was the ball's speed just before landing?
The speed of the ball (i.e the velocity since it has a direction in a specified time) is 5.2 m/s before it landed.
From the given information,
the mass of the baseball = 0.15 kgthe momentum of the baseball = 0.78 kg m/sFor an object moving in a direction in a specified time, the momentum of the object is usually directly proportional to the mass and velocity.
∴
Momentum = mass × velocity
velocity = momentum/mass
velocity = 0.78 kgm/s ÷ 0.15 kg
velocity = 5.2 m/s
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PLEASE HELP! ILL GIVE BRAINLY!!
If earth receives more energy than it spends back to space, what can we expect to happen?
A ) The temperature on earth will increase.
B ) The temperature on earth will increase.
C ) The temperature on earth will stay the same.
D ) Earth’s energy budget will be balanced.
ILL GIVE BRAIYIST
True of false: Radiant energy reaches the earth in the from of both visible and invisible electromagnetic waves.
Answer:
TRUE OR FALSE : ) IT'S TRUE
EXPLAIN:
Radiation
All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat. Radiant energy spreads out from its source in all directions. ... GAMMA RAYS have more energy than XRAYS, Radio waves, microwaves and ultraviolet waves all have longer wavelengths than visible light. Both X rays and gamma rays have higher frequencies than ultraviolet rays.
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What is an example of an electromagnetic wave? Select all that apply. *
gamma ray
ocean wave
light from a lamp
microwave
slinky falling down the stairs
seismic wave
siren on a fire truck
Answer:
A gamma ray, light from a lamp, and a microwave are examples of electromagnetic radiation.
Explanation:
Gamma radiation, visible light (light from a lamp), and microwaves are all apart of the electromagnetic spectrum.
Pls help me I want to get this done
What behavior of light proves that it is a wave? Hint: will this ONLY happen because light is a wave, or could it also be true of fast moving particles? Select all that apply. *
Interference between two or more light waves
Reflection of light
Absorption of light
Redshift and blueshift
When a car suddenly stops at a red light, a book lying on the car seat slides forward. Why does the book continue to move forward?
A: The car moves in reverse more rapidly than the book.
B: The friction of braking transfers energy to the book
C: The book’s inertia causes it to continue moving
Answer:
C
Explanation:
The answer is c because Newton’s third law states “ for every action there is an equal and opposite reaction.” Since the car quit moving the book did not stay at rest because there was a reaction.
Answer:
C
Explanation:
Newton's 1st law of motions states : " Intertia: A objects resistance to change. More mass= more intertia. Less mass= Less intertia.
it ALSO states that an object at rest will stay at rest, until an outside forces acts upon the object, forming an unbalanced force.
The car stopping suddenly is the outside force, and the book sliding forward is the intertia to change.
What do organisms need in order to reproduce? This is Science Btw
Answer:
Energy. They need energy.
Explanation:
ik this is a lot but I am super confused, could you pls helpppp
Explanation:
So basically yh first off the number for protons and electrons are the same and to find them is to look at the atomic number because the atomic number is the same as protons and electrons.
To find the neutrons you need to take the actual atomic number from the atomic mass unit.
Hope that helps yh don't stress it.
How does the average speed of the atoms in a substance compare to the average speed of the atoms in a substance with a lower temperature?
Answer:
yes it does
Explanation:
During a camping trip, Ming gathers firewood and arranges it in the fire
pit. She sets it on fire, and the result is a roaring blaze. Which statement
best shows all the energy transformations that took place?
Answer: motion, heat and air
Explanation:
PLEASE HELP AGAIN IT IS THE MATH AND PLEASE GIVE ME REAL ANSWERS!
Answer:
Everyone would get 2 1/4 cupcakes because if you split up each cupcake by 4, (In four different pieces) everyone would get 9/4 slices. Change to a mixed number to get 2 1/4
Explanation:
Answer:
the answer is 2 1/4 is shared