<span>Ethylene is used to ripen crops so that all plants in a crop will ripen at the same time.
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Answer: A. cooled and hardened lava from volcanoes
C. sediments deposited by rivers and ocean currents
An accretion is a process in which new materials are added to a tectonic plate or landmass. This process causes the enlargement of the landmass. The materials being added includes sediments, lava from volcanic eruptions and other materials from other sources.
The process of accretion can enlarge the size of a continent along its edge. The new land comes from the cooled and hardened lava from volcanoes and other reason is sediments deposited by rivers and ocean currents.
The correct answer is filtration.
The small molecules can cross in and out of the capillaries through facilitated or simple diffusion. However, the majority of the flow of capillary and tissue fluid takes place through the process of filtration and reabsorption. Filtration refers to the movement of the fluid out of the capillaries and is mediated by the capillary hydrostatic pressure.
Answer: II and IV
Explanation: Flammability and the ability to rust are chemical properties because they change an object. I, III, and V are physical properties because it doesn't change the object's composition. This includes weight, the change in matter (solid to liquid), or change in volume.
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The UV rays could harm the DNA of skin cells. Skin cancers begin when the said harm affects the genes’ DNA which control the growth of the skin cell. There are three main types of UV rays, the first one is called UVA rays. They can damage the DNA of skin cells and age them. They are connected to long-term skin damage, however they are also thought to cause some skin cancers. The second one is called UVB rays, they have a little more energy than UVA rays. They are thought to cause most skin cancers as well. They can immediately damage the DNA of skin cells. The third one is called UVC rays, they have a greater amount of energy than the other types of UV rays, however they don’t usually cause skin cancer.
