Answer:
D
Explanation:
The west like California had lots of free land and gold which gave the americans a chance to own and prosper land.
Answer: 3) Confounding variable
Explanation:Confounding variable is the variable that indicates about the external influential factors that produces the manipulated consequences of independent and dependent variable.This variable can lead to producing useless outcomes in an experiment.
According to the question, the changes occurring in interest of student in algebra can be due to the outside factors which are not generating the actual results and thus, experiment is getting ruined.
Other options are incorrect because application variable remain same for the experiment,system variable are the variables of certain system and reliability variables describe about the variable on which dependent or stable.Thus, the correct option is option(3)
The three things that plants need to make sugar is Sun, Water, and Air
A warm, moist air mass from the gulf of Mexico that moves over the land in the southeastern u.s. during the summer is likely to be classified as<u> mTk.</u>
Heat and moisture are transferred from the water below to the air above in the warm waters of the tropics and the Gulf of Mexico, where maritime tropical air masses are created.
As tropical air masses move north, they bring warm, humid air to the United States, increasing the risk of precipitation.
Tropical air masses are frequently restricted to the southern states for the most of the winter. But occasionally throughout the winter, southerly winds will push a tropical air mass north.
To learn more about Tropical Air Mass here
brainly.com/question/13410461
#SPJ4
<u></u>
