Answer:
Beyond our solar system, organic molecules have been found in giant clouds of dust and gas between stars and in star-forming regions.
In our solar system, besides Earth, organic molecules have been discovered on comets, in meteorites, on Saturn's moon Titan, in the plumes of water expelled from Saturn's moon Enceladus, and on Neptune's moon Triton.
Answer : The correct option is, (d) 90 mL
Explanation :
First we have to calculate the volume of an object.
As we know that,
Given:
Density of an object = 0.25 g/mL
Mass of an object = 10 g
Now put all the given values in the above formula, we get:
Thus, the volume of an object is 40 mL.
Now we have to calculate the height of the water in the graduated cylinder rise.
As we are given that:
The volume of water in graduated cylinder = 50 mL
The volume of an object = 40 mL
The height of the water in the graduated cylinder rise = Volume of water in graduated cylinder + Volume of an object
The height of the water in the graduated cylinder rise = 50 mL + 40 mL
The height of the water in the graduated cylinder rise = 90 mL
Therefore, the height of the water in the graduated cylinder rise will be, 90 mL
Global climate change is a change in the atmosphere that occurs all over the planet simultaneously. Although these changes have occurred in certain periods in a natural way, we are currently facing global climatic changes caused by human activities, which have inconsequentially modified the natural harmony of climatic conditions.
The climate change we are currently experiencing refers to global warming, where the earth's temperature is increasing on an alarming and worrying scale. Global warming has caused the melting of the polar ice caps, harmed marine life, increased the surface temperature of the oceans, caused droughts and floods, in addition to promoting an abnormal and harmful sensation to living beings.
These changes are the result of the constant use of fossil fuels, deforestation, pollution and other human activities that have degraded nature and the atmosphere. This is because these activities, mainly the use of fossil fuels, promote a large production of carbon dioxide, which, when released into the atmosphere, causes holes in the ozone layer that protects our planet from the sun's rays. With the depletion of the ozone layer, the planet is left unprotected and receives sun rays at harmful intensities.
Therefore, we can conclude that the global climate changes that we are experiencing are the consequences of our own actions and that is why it is our responsibility to repair the damage caused by global warming and to promote measures that reduce it.
It is a change that results in a new chemical substance.
supply it with more energy. one way to do is to produce vibrations in the same frequency as the wave. This would cause resonance leading to higher amplitude