Answer:air pollution
Explanation:
Air Pollution is the presence in to the air of a substance which has harmful or poisonous effects
Answer:
all of the above
Explanation:
gravity makes a planet have a combination go straight yet go around the sun at the same time creating an ellipse
sciencefocus
The right answer is spiral.
Size and shape vary from one bacterium to another. The majority of bacteria have a size between 0.5-5 μm in diameter.
Most bacteria are either spherical or rod-shaped. In the first case they are called cocci (of the Greek kókkos, grain) and in the second bacilli (of Latin baculus, rod). There are also intermediate forms: coccobacilli. Some rod-shaped bacteria are slightly curved like vibrio. Other bacteria are helicoidal. They are spiral if the form is invariable and rigid, spirochaetes if the body is flexible and can change shape.
Metamorphism is the changing of rocks by heat and pressure. During this process, rocks change either physically and/or chemically. They change so much that they become an entirely new rock. Figure 4.22: The platy layers in this large outcrop of metamorphic rock show the effects of pressure on rocks during metamorphism.
