Incomplete question. The full question read;
If the US modifies techniques for timber management, it is expected that US forests will
a. not be able to meet long term timber needs
b. be able to meet long term timber needs
c. result in deforestation
d. provide increasingly cheaper timber
Answer:
<u>b. be able to meet long term timber needs</u>
Explanation:
<em>Remember</em>, the emphasis here is on the modification of the present techniques for timber management in order to boost productivity.
Hence, we can conclude that since there would be an improvement in production efficiency,<em> the US would be able to meet its long-term timber needs.</em>
The answer is B. They do not usually bring precipitation.
High clouds appear in the highest levels of the troposphere. They are most brilliant white due to the ice crystals in this level. Sunlight passes through high clouds most of the time as it's thickness is relatively thin. There are three main types of high clouds: cirrus, cirrostratus, and cirrocumulus. These clouds usually develop on says with weather and lighter winds at the surface, generally these clouds do not produce precipitation except in some cases.
Answer:
<u>DNA Helicase</u> unwinds DNA molecule