Answer:Some sources could be gases especially SO2 by emitting the burning of fossil fuels — coal, oil, and diesel — or other materials that contain sulfur.Some nclude power plants, metals processing and smelting facilities, and vehicles,etc.
Explanation:
You have to give me the question
Muscle cells are divided into two groups, striated muscle and smooth muscle. Striated muscle cells are characterized by protein arrays that form stripes. Smooth muscles don't have these striations or stripes and appear unmarked when viewed through a microscope.
Muscle cells form muscle tissue, and three types of muscle tissue are found in the human body: smooth muscle, cardiac muscle and skeletal muscle. The movement of smooth muscle is an involuntary process, meaning the muscle contracts and relaxes without conscious thought.
Cardiac muscle is similar to smooth muscle but is only located within the heart. This tissue is also controlled by involuntary processes. Cardiac muscle tissue doesn't contain nerves, but electrical impulses pass through the tissue causing involuntary responses.
Skeletal muscles are attached to bones in the body and are controlled through voluntary movements. When you do a push-up, flex your biceps, turn your head or scratch your nose with a finger, skeletal muscles are performing these tasks through voluntary movements.
Answer:
T. rex also had only two fingers on its hands, rather than the three seen in most other carnivorous dinosaurs, so its arms and hands really do appear to have been less important than they were in its relatives.
Explanation:
it is what it is.
If different objects are dropped in a vacuum or in mid air to the ground, then they will fall at the same rate.
*remember!! a hypothesis doesn't have to be correct, just testable!!**
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