Match the type of fuel in column A to its description in column B. Question 2 options:

Burns cleaner than gasoline, can be made from biomass, and some vehicles can run on fuel that is up to five percent this type of fuel

Burns cleaner than gasoline, can be made from biomass, and many vehicles can run on fuel that is up to 10 percent this type of fuel

A fossil fuel that burns clean, and vehicles that can use this type of fuel are not widely available

Must be placed in a fuel cell to produce electricity and doesn't produce greenhouse gases

1.
Ethanol

2.
Biodiesel

3.
Hydrogen

4.
Natural gas and propane

Write a program that uses a random number generator to generate a two digit positive integer and allows the user to perform one or more of the following operations: a. double the number. b. reverse the digits of the number. c. raise the number to the power of 2, 3, or 4. d. sum the digits of the number. e. if the number is a two-digit number, then raise the first digit to the power of the second digit. f. if the number is a three-digit number and the last digit is less than or equal to 4, then raise the first two digits to the power of the last digit. after performing an operation if the number is less than 10, add 10 to the number. also, after each operation determine if the number is prime. each successive operation should be performed on the number generated by the last operation. your program should not contain any global variables and each of these operations must be implemented by a separate function. also, your program should be menu driven. 7. (fraction calculator) write a program that

Write a java program named charsindex to get the index of all the characters of the alphabet. ask user to input a string. the sample output was produced by this string: "the quick brown fox jumps over the lazy dog." sample output:

Explain why spinlocks are not appropriate for single-processor systems yet are often used in multiprocessor systems.