ODIS Observation: I want to know what effect alt has on the growth of grass. sot measure out a equal sized squares of
crass
out the back of the Green Building The first square of lawn water with 5 litres of pure water from a watering
can every day. The second square of tawn I water with S litres of pure water with 2 grams of salt mixed in every
day. The third square of lawn t water with slitres of pure water with 4 grams of salt mixed in, every day I measure
the height of the erass after 14 days and note the following observations. The first square is green and 15 con high
The second sauere is creeny yellow and 6 em high. The third square is yelowy brown and looks dead and only 2cm
high.
"

i believe it is a.) released into

explanation:

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.

answer///carbon;