Yes, it is still canned, frozen is an alternative
There is no gluten in any canned or frozen vegetables.
Canned petit pois are usually found in a can whilst frozen petit pois are generally frozen
yes
A serving size is: One medium-size fruit 1/2 cup raw, cooked, frozen or canned fruits (in 100% juice) or vegetables 3/4 cup (6 oz.) 100% fruit or vegetable juice 1/2 cup cooked, canned or frozen legumes (beans and peas) 1 cup raw, leafy vegetables 1/4 cup dried fruit
I'm not positive, but I've never seen canned or frozen cucumbers:)
Green tomatoes may be canned or frozen as they are, to be used as fried green tomatoes. Or they may be canned or frozen with added sugar, cinnamon, salt and cornstarch as pie filling. Green tomatoes can also be made into salsa, much like tomatillos, and canned or frozen.
Cod is sold fresh, frozen and salted.
Nothing canned can be frozen as the water inside will freeze and expand squashing the potatoes. Canned food can last for years so you don't need to freeze them.
Sodium is usually added to canned corn before it is processed to improve its flavor. Much less sodium, if any, is added to frozen corn. However, it is possible to buy canned corn that is low sodium, or even has no added sodiuml.
No
Canned soups that have been frozen cannot be safely used. Freezing cans can cause them to swell and potentially harm the ingredients inside.