1.
What is the function of the nucleus?
Correct Answer
A. It controls and regulates the activities in a cell.
Explanation
The nucleus is the control center of a cell, responsible for regulating all cellular activities, including growth, metabolism, and reproduction. It contains the cell's genetic material, DNA, which provides instructions for making proteins and guides cell division. The nucleus also ensures the replication and proper distribution of DNA during cell division, maintaining genetic continuity. The nuclear membrane protects the nucleus, maintaining the integrity of the genetic material and separating it from the cytoplasm.
2.
How long is one regular term for a U.S. Representative?
Correct Answer
B. 2 years
Explanation
A regular term for a U.S. Representative is 2 years. Representatives serve shorter terms than U.S. Senators, who serve 6-year terms. This shorter term allows for more frequent elections, ensuring that the House of Representatives remains closely aligned with the changing needs and opinions of the American public. Representatives must run for re-election every two years, encouraging them to be responsive to their constituents' needs and concerns.
3.
Which of the following is NOT one of the Great Lakes?
Correct Answer
A. Alberta
Explanation
Alberta is not one of the Great Lakes; it is a province in Canada. The Great Lakes, located on the border between the United States and Canada, consist of Lake Huron, Lake Michigan, Lake Ontario, Lake Erie, and Lake Superior. These lakes are the largest group of freshwater lakes in the world by total area and are significant for their ecological, economic, and social importance.
4.
In the northern hemisphere, in what month is the autumnal equinox?
Correct Answer
B. September
Explanation
The autumnal equinox occurs in September in the northern hemisphere, typically around the 22nd or 23rd. It marks the start of autumn and is characterized by nearly equal lengths of day and night as the sun crosses the celestial equator. This equinox is one of two annual equinoxes, the other being the vernal equinox in March, which signals the start of spring.
5.
Emma has 2 yard sticks. She also has a 12-inch ruler. She laid them end-to-end in a line. How many feet long is the line?
Correct Answer
C. 7 Feet
Explanation
Each yardstick is 3 feet long, so two yardsticks make a total of 6 feet. A 12-inch ruler is equal to 1 foot. When laid end-to-end, the total length is 3 + 3 + 1 = 7 feet. Therefore, the length of the line made by Emma’s two yardsticks and one ruler is 7 feet.
6.
Who was the 12th President of the United States?
Correct Answer
D. Zachary Taylor
Explanation
Zachary Taylor was the 12th President of the United States, serving from March 1849 until his death in July 1850. A career military officer, Taylor was known for his role in the Mexican-American War before becoming president. His presidency was brief but notable for his opposition to the expansion of slavery into new U.S. territories, a stance that contributed to growing tensions leading up to the Civil War.
7.
The atmosphere of the Earth is divided into ______ layers.
Correct Answer
A. Five
Explanation
The Earth's atmosphere is divided into five main layers: the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Each layer has distinct characteristics and functions. The troposphere is where weather occurs; the stratosphere contains the ozone layer; the mesosphere is where meteors burn up; the thermosphere is where the auroras occur; and the exosphere is the outermost layer, gradually transitioning into space.
8.
0 divided by any number equals to ______.
Correct Answer
A. 0
Explanation
The result of 0 divided by any non-zero number is always 0. This is because division can be thought of as splitting a quantity into equal parts. If there are 0 items to be divided, each part will still have 0 items, regardless of the number of parts. Note that dividing by 0 is undefined, but 0 divided by any number is always 0.
9.
What is Precipitation?
Correct Answer
D. None of the above
Explanation
In meteorology, precipitation refers to any form of water—such as rain, snow, sleet, or hail—that falls from clouds and reaches the Earth's surface. It is not a chemical process. The answer options provided do not correctly describe precipitation, which is a key component of the Earth's water cycle and plays a crucial role in the climate system.
10.
660*12=
Correct Answer
A. 7920
Explanation
The product of 660 multiplied by 12 is 7920. This multiplication can be verified by breaking it down: 660×12=660×(10+2)=6600+1320=7920. Therefore, the correct answer is 7920.