Use aggregate or gravel that does not contain any additives or large portions of organic matter that has not decomposed. Make sure the aggregate has not been in contact with animals, as you do not want germs or bacteria to get into the water. Use fresh water to fill the plant zone. Make sure the water runs into the pool area easily so the plants can help to filter the water. Check that the piece of black liner you are using as a barrier sits upward in the water, preventing the plants from drifting into the pool area. Waterweed and hornwort are both great options, as they release a lot of oxygen into the water. You can also put in aquatic plants like sedges and rushes on the perimeter of the plant zone to keep the area oxygenated and contained. Water lilies and other floating plants are great options for the plant zone, as they encourage the growth of microorganisms that will keep the water healthy and clean. If you are using plants that have roots, shovel gravel onto the bottom of the plants so they stay in place in the plant zone.
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One-sentence summary -- Put 3 to 6 inches (7.6 to 15.2cm) of aggregate or gravel in the plant zone. Fill the plant zone with water 1 foot (0.30m) below the top edge. Place oxygenating plants in the plant zone to keep the water healthy. Add in floating plants to provide shade to organisms. Anchor the plants with gravel.

Q: In naming compounds, Greek prefixes are used to indicate the number of atoms present for each element. Covalent compounds are written out as molecular formulas due to the fact that each compound is a distinct, separate molecule. Covalent compounds have the first element written out completely while the second element is named with the suffix "ide." For example, diphosphorus trisulfide has a chemical formula of P2S3. Below are the prefixes for 1-10: 1: Mono- 2: Di- 3: Tri- 4: Tetra- 5: Penta- 6: Hexa- 7: Hepta- 8: Octa- 9: Nona- 10: Deca- When a compound has been written out, you must identify the elements and know their chemical symbols. The first element written is "first name" of the compound. Use the periodic table to find the chemical symbol for the element. For example: Dinitrogen hexafluoride. The first element is nitrogen and the chemical symbol for nitrogen is N. To identify the number of atoms present for each element, you simply need to look at the prefix of the element. Memorizing the Greek prefixes will help you to be able to write chemical formulas quickly without looking anything up. For example: Dinitrogen has a the prefix "di-" which means 2; therefore, there are 2 atoms of nitrogen present. Write dinitrogen as N2. The second element is the "last name" of the compound and will follow the first element. For covalent compounds, the element name will have a suffix of "-ide" instead of the normal ending of the element. For example: Dinitrogen hexafluoride. The second element is fluorine. Simply replace the "ide" ending with the actual element name. The chemical symbol for fluorine is F. As you did with the first element, identify the number of atoms present in the second element by reading the prefix. Using this prefix, write the number of atoms as a subscript to the right of the chemical symbol. For example: Hexafluoride has a prefix of "hexa-" which means 6; therefore, there are 6 atoms of fluorine present. Write hexafluoride as F6. The final chemical formula for dinitrogen hexafluoride is N2F6. When first learning chemistry, there is a lot of memorization involved. It is kind of like learning a new language. The more examples you practice with, the easier it will be to decipher chemical formulas in the future and learn the language of chemistry. Sulfur dioxide: SO2 Carbon tetrabromide: CBr4 Diphosphorus pentoxide: P2O5
A: Memorize the prefixes for number of atoms. Write the chemical symbol for the first element. Add the number of atoms as a subscript. Write the chemical symbol for the second element. Add the number of atoms present as a subscript. Practice with some examples.

Article: Jesus fed the sick, poor, and downtrodden on his journey to spread the word of God. When you do acts of good like help at a shelter or soup kitchen, it's part of being a Christian. Search online for shelters in your area and give them a call during business hours to inquire about opportunities to volunteer. In Proverbs 21:13 it says "Whoever shuts their ears to the cry of the poor will also cry out and not be answered." The church that you go to will probably be involved in some programs in your town to help others. Some churches will take missions to go to poorer countries and help the people there and disaster response, while others concentrate on improving the neighborhood. Call your local church and inquire about any volunteer opportunities available. The Bowery Mission in New York City is one example of a church with volunteer opportunities to help the homeless. Things that they might have you do is feed the poor, clean up a community space, or help fix up or repair things at the church itself. In Galatians 3:28 it says, "There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus." This can be interpreted to mean that regardless of their beliefs or nationalities, you should treat all people with dignity and respect. Instead of spreading messages of hate because your theologies differ, extend the olive branch and talk to those that don't share the same belief systems. Treat those in the LGBT community with dignity and respect as they are also God's children. Discrimination, racism, and sexism violate the word of God. You can help simply by listening to family or friends when they are going through rough times. Be understanding and caring to those that need the help, and try to refrain from judgment. Think of simple ways to improve the lives of those around you. You can also help in other ways like stopping for someone who needs assistance on the road or helping an elderly person with their groceries.
Question: What is a summary of what this article is about?
Volunteer at a local homeless shelter or soup kitchen. Volunteer at your church. Treat people with dignity and respect. Help people who need it.