Because there is little or none of it.
It is difficult to get to the planets to observe them closely. Much of life (bacteria) would only be observable under a microscope, and even the largest living beings known on Earth wouldn't be observable from a telescope from Earth, for example.
Light from the stars they orbit makes it difficult to see them.
One piece of evidence supporting Pluto being considered a planet is its spherical shape and orbit around the Sun. However, its classification as a planet has been debated due to its small size, sharing its orbit with other objects, and not being able to clear its orbit of debris like other planets.
There is a law of exchange. When two things come in contact with each other, they are said to exchange the material. You have to see for the same. Also that, you can not see, what you do not know. The expert will be able to collect the circumstantial evidence from the spot of the crime. The hardcore criminal also leaves sufficient evidence to catch him. You have to be a keen observer to find the evidence. The criminal has almost always left, enough evidences to incriminate him. What seems unimportant to you may be very important to the forensic expert. That is not necessary to collect 'All' the evidences left by the criminal. That is not possible and not required also.
light from the they orbit makes it difficult to locate extrasolar planets with telescope
find it yourself
people find it difficult to be united because they are different from each other
This is a good example of circumstantial evidence; this is basically when the evidence is just a matter of "in the wrong place at the wrong time". If there was little other evidence besides it a prosecution would find it very difficult to get a trial, much less a conviction.
I am not sure about this question too , a little difficult . I try to find the answer in the other website , but it is a little difficult for me to find it ! Maybe a little difficult for the other person to answer ! Original answer come from Emily(wow-nike.com)
"most difficult" is a personal thing. What you find most difficult someone else might find easy and also, the other way around.
It's difficult to find something that doesn't exist. There's no credible evidence that there ever was such a bomb.
To get the evidence you walk around to the other side of the car
look other person
it helps find evidence in a crime situation
You would find evidence
It is difficult to get to the planets to observe them closely. Much of life (bacteria) would only be observable under a microscope, and even the largest living beings known on Earth wouldn't be observable from a telescope from Earth, for example.
Difficult to find? No. Difficult to see? Definately.