Read this excerpt from "A Student's Guide to Global Climate Change."
This excerpt uses
text structure.
Climate change might allow some infectious diseases to
spread. As winter temperatures increase, ticks and
mosquitoes that carry diseases can survive longer
throughout the year and expand their ranges, putting
more people at risk. One big concern is malaria, a
deadly disease spread by mosquitoes in many hot,
humid parts of the world.
What can people do about it?
People should take common-sense steps to avoid tick
and mosquito bites, and communities can take actions
to control mosquitoes, such as removing sources of
standing water. It's also important for doctors to know
the symptoms of diseases that could be spreading to
new areas so they can diagnose and treat their patients.
By

Problem-solution

Explanation:

The Text structure is defined as the organizational pattern in which the author has arranged or presented the information to the readers. The author primarily organizes the written text in a specific structure to comprehend readers' understanding.

In the given excerpt from 'A Student's Guide to Global  Climate Change', the author employs 'problem-solution' text structure as he first addresses the serious problem 'Climate change might allow some infectious diseases like malaria to  spread' that needs to be addressed as it may lead to disastrous consequences and afterwords provide a possible solution to it('People should take common-sense steps to avoid tick  and mosquito bites...patients'). The author primarily organizes the written text in a specific structure to comprehend readers' understanding.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.