As a rocket takes off, the gases released push down on the ground, which then pushes the rocket up. true or false

Answers

Answer 1
Answer: True, Every action has a equal and opposite reaction, Newton's third law.

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In a year, a population of lions had four births, two deaths from disease, one natural death, five emigrations, and five immigrations. In the same year, a population of zebras had five births, three deaths, four emigrations, and one immigration. Which best explains the data?

Answers

The statement, which best explain the data is this: THE ZEBRAS HAVE A LOWER POPULATION GROWTH RATE THAN THE LIONS.

From the data given in the question, the population growth rate for lions and zebra can be calculated. The formula for calculating population growth rate is: Population growth rate = [Number of birth - Number of death] + [Number of immigration + Number of emigration]

For lions, we have: Population growth rate = [4 - 3] + [5 - 5] = 1 + 0 = + 1

For zebras, we have: Population growth = [5 - 3] + [1 - 4] = 2 + [-3] = 2 - 3 = - 1.

From the calculation above we can see that, the lions have a higher population growth rate than the zebras.

Answer:

Zebras have a lower population

What must happen for a solar eclipse to occur?a)The moon must pass behind Earth.
b)The moon must be full.
c)The moon's orbit must cross the plane of the ecliptic.
d)The moon's orbit must not cross Earth's penumbra.

Answers

The best answer to the question stated above is letter  C.The moon's orbit must cross the plane of the ecliptic.

>>Solar eclipses happen when the Moon moves between Sun and Earth, blocking the Sun's rays and casting a shadow on Earth.
>>
Solar eclipses can happen only during a new Moon.
>>E
arth's orbit is called the ecliptic plane as the Moon's orbit must cross this plane in order for an eclipse (both solar as well as lunar) to occur

The moon's orbit must cross the plane of the ecliptic for a solar eclipse to occur. The correct option is C.

A solar eclipse takes place when the moon passes between the sun and the Earth, causing the sun to be partially or fully obscured from certain locations on Earth.

For this alignment, the moon's orbit must intersect the plane of the ecliptic, which is the imaginary plane defined by Earth's orbit around the sun.

During a solar eclipse, the moon casts a shadow on the Earth's surface, blocking or partially blocking the sunlight.

This can result in a total solar eclipse, where the sun is completely covered, or a partial solar eclipse, where only a portion of the sun is obscured.

Thus, the correct option is C.

To know more about the Solar eclipse, click here:

brainly.com/question/12075389

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Bears and coyotes both consume large plant-eating mammals such as deer. When the deer are in short supply, bears and coyotes may fight over the prey. This type of biological interaction is called

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The biological interaction is competition :3

Answer:Competition

Explanation: Since both bears and coyotes use the same supply of deers to feed on, both organisms must compete against one another in attempts to get food.

A fish that normally lives in salty water is placed in a tank containing fresh water. What do you think will happen to the cells of the fish?

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Well, freshwater doesn't have the salt that a saltwater fish needs so the fish's cells(hypertonic cells) would become hypertonic which cannot mix with that fish's structure. Therefore, the fish, well, the fish would die.

What keeps Mars in orbit around the Sun? Select one:
a. friction
b. gravity
c. magnetism
d. solar power

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The Sun's gravity combined with the tangential ("sideways") velocity of Mars.

Is diffusion the only way materials can enter the cell? Explain.

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Of course not! There's lots of ways materials can enter. It also depends on the cell; whether it has cell wall and cell membrane or only cell membrane.

Besides diffusion, there's also osmosis and active transport.

If the cell has only cell membrane, it means it's partially permeable, which means osmosis can happen.

*hope this helps :)