Determining the strength of evidence - MCAT Critical Analysis and Reasoning Skills

Card 1 of 32

0
Didn't Know
Knew It
0
1 of 2019 left
Question

Adapted from "Save the Redwoods" by John Muir in Sierra Club Bulletin Volume XI Number 1 (January 1920)

We are often told that the world is going from bad to worse, but this righteous uprising in defense of God's trees is telling a different story. The wrongs done to trees are done in the darkness of ignorance and unbelief, for when light comes the heart of the people is always right. Forty-seven years ago one of these Calaveras King Sequoias was laboriously cut down, that the stump might be had for a dancing-floor. Another, one of the finest in the grove, was skinned alive to a height of one hundred and sixteen feet and the bark sent to London to show how fine and big that Calaveras tree was—as sensible a scheme as skinning our great men would be to prove their greatness. Now some millmen want to cut all the Calaveras trees into lumber and money. No doubt these trees would make good lumber after passing through a sawmill, as George Washington after passing through the hands of a French cook would have made good food. But both for Washington and the tree that bears his name higher uses have been found.

In noble groves and forests south of the Calaveras Grove the axe and saw have long been busy, and thousands of the finest Sequoias have been felled, while fires have spread still wider and more lamentable ruin. In the course of my explorations twenty-five years ago, I found five sawmills on or near the lower margin of the Sequoia belt. One of the smallest of these in the 1874 season sawed two million feet of Sequoia lumber. Since that time, other mills have been built among the Sequoias. The destruction of these grand trees is still going on.

On the other hand, the Calaveras Grove for forty years has been faithfully protected by Mr. Sperry, and with the exception of the two trees mentioned above is still in primeval beauty. Many groves have of late been partially protected by the Federal Government, while the well-known Mariposa Grove has long been guarded by the State.

For the thousands of acres of Sequoia forest outside of reservations and national parks, and in the hands of lumbermen, no help is in sight. Probably more than three times as many Sequoias as are contained in the whole Calaveras Grove have been cut into lumber every year for the last twenty-six years without let or hindrance, and with scarce a word of protest on the part of the public, while at the first whisper of bonding the Calaveras Grove to lumbermen most everybody rose in alarm. Californians’ righteous and lively indignation after their long period of deathlike apathy, in which they have witnessed the destruction of other groves unmoved, seems strange until the rapid growth that right public opinion has made during the last few years is considered and the peculiar interest that attaches to the Calaveras giants. They were the first discovered and are best known. Thousands of travelers from every country come to see them, their reputation is world-wide, and the names of great men have long been associated with them—Washington, Humboldt, Torrey and Gray, Sir Joseph Hooker, and others. These kings of the forest rightly belong to the world, but as they are in California, we cannot escape responsibility as their guardians. Fortunately the American people are equal to this trust, or any other that may arise, as soon as they see it and understand it.

Any fool can destroy trees. They cannot defend themselves or run away. And few destroyers of trees ever plant any, nor can planting avail much toward restoring our grand aboriginal giants. It took more than three thousand years to make some of the oldest of the Sequoias, trees that are still standing in perfect strength and beauty. Through all the eventful centuries since Christ's time, and long before that, God has cared for these trees, saved them from drought, disease, avalanches, and a thousand storms; but he cannot save them from sawmills and fools; this is left to the American people.The news from Washington is encouraging. The House has passed a bill providing for the Government acquisition of the Calaveras giants. The danger these Sequoias have been in will do good far beyond the boundaries of the Calaveras Grove, in saving other groves and forests and quickening interest in forest affairs in general. While the iron of public sentiment is hot let us strike hard. In particular, a reservation or national park of the only other species of Sequoia, the sempervirens, or redwood, hardly less wonderful than the gigantea, should be quickly secured. It will have to be acquired by gift or purchase, for the Government has sold every section of the redwood belt from the Oregon boundary to below Santa Cruz.

Which of the following is an assumption made by the author?

Tap to reveal answer

Answer

Correct answer: There are sufficient sources of lumber to meet the reasonable needs of society without using Sequoias for this purpose.

The author objects only to the use of these trees for lumber, and his analogy with George Washington indicates that he thinks that there is something that's acceptable to be used for this purpose. All Sequoias, like all people, should not be used for a crass and base purpose, but just as saying George Washington should not be made into food doesn't imply that chickens should not, saying Sequoias not be made into lumber does not imply that no trees should. The author makes no argument against the idea that this wood is being put to necessary uses, and so there is an implication that lumber needs can be sourced elsewhere. It is possible that the author thinks that society should reduce its use of lumber, as well, but this answer is still the best of the group.

The people will always, in the end, act to save and preserve natural resources.

This answer is incorrect because the author sets a conditional: only when destructive activities are brought to light does this happen. In this case, the destruction of Sequoias went on in California until a well-known forest was threatened.

Lumbermen are only concerned with money.

The author says that some lumbermen are concerned with lumber and money, but he doesn't say this of all lumbermen nor that their only concern is money.

The only way to halt the destruction of the Sequoias is through federal or state action.

Although the author clearly thinks that state or government action is a good idea, there is nothing to suggest he would be against a private citizen purchasing and preserving a group of Sequoias. The author ends the passage by saying, "In particular, a reservation or national park of the only other species of Sequoia, the sempervirens, or redwood, hardly less wonderful than the gigantea, should be quickly secured. It will have to be acquired by gift or purchase, for the Government has sold every section of the redwood belt from the Oregon boundary to below Santa Cruz." A reservation might be a private thing.

Lumbermen have too much political power.

This is an incorrect answer because while there is an implication that lumbermen have political power, the author claims that it is defeated when their activities are brought to light. The author places the problem mostly on the lack of public knowledge and not the political power opposing conservation attempts.

← Didn't Know|Knew It →