Read the following passage and answ

Read the following passage and answer questions
The planet Earth is 4,600 million years old.It is difficult for us to think about such an enormous length of time because it has little meaning for us.We can,however, simplify the idea to make it more understandable.We can compare the planet Earth to a person of forty-six years of age.
Nothing is known about the first seven years of this person's life. Very little information exists about the middle period either.It was only at the age of forty-two that the Earth began to flower.
Dinosaurs and great reptiles did not appear until one year ago, when the planet was forty-five. Mammals only arrived eight months ago. In the middle of last week, man-like apes became apelike men and began to communicate with each other.Last weekend, the Ice Age covered the Earth.
Modern man has only been around for four hours. During the last hour man discovered agriculture. The Industrial Revolution and rise of large cities began just sixty second ago.
During that short time,modern man has made a rubbish tip of the Earth. In one minute, he has increased his numbers to terrible proportions, and has caused the death of hundreds of species of animals.He has robbed and destroyed the planet in his search for fuels. Now he stand,like a violent, spoilt child,delighted at the speed of his rise to power, on the edge of th final mass destruction and of killing all the life which exists in the solar system.
1. The passage tells us that
A. more is known about the fist part of the Earth's life than the middle part
B. life on Earth began relatively recently
C. scientists are well-informed about the middle part ò the Earth's life
D. a great deal is known about how the Earth was created
2.we are informed by the author that
A.the dinosaurs appeared during the middle period
B.mammals and great reptiles both appeared at the same time
C. ape-like men appeared before th last Ice Age
D. there were more than forty-five kinds of great reptiles
3. the author is mainly interested in
A. the time when man first evolved from apes
B.the period before the last Ice Age
C. what has happened since the Industrial Revolution
D. the effects of farming
4. It would appear that the main danger ahead is that
A. man will destroy verything on Earth
B. there will be a population explosion
C. more speacies of animal may die out
D. man will use up all the fuels
5. the author's general view of man seens to be that
A. he has no rightnto be so destructive
B. he has been the most successful animal
C. he has learned a lot from past mistakes
D. he will be able to control the environment