Please help
I need help on the first one
Aristotle is the first scientist of the world .
Entende-se por carta informal a missiva trocada entre pessoas com um relacionamento próximo e entre as quais existe familiaridade (parentes, amigos, colegas, etc.). São cartas que utilizam um estilo coloquial, apresentando o texto características de subjectividade.
Answer:
2. Sediment B quartz sand forms when rocks first break apart
Explanation:
- Limestone is a carbonate rock that sedimentary in origin that is often made up of skeletal body parts of freshwater organisms such as corals, and mollusks, etc.
- Major material of mineral calcite. That are different crystal forms of calcium carbonate CaCO3. It's colorless or white, also gray, yellow, green. And chemically dissolves to form an acid.
- Calcite may form in substance to the response of organisms which result in sulfate dependent and when methane is oxidized. They have existed on earth primarily in forms of calcium carbonate in marine waters low magnesium calcite.
Answer:
Physical Properties of Water (H2O):
It is Colorless Liquid.
It is Tasteless.
It ha a Specific Gravity of 1 at room Temperature.
It freezes at (0) zero, degree Celsius.
It boils at 100 degrees Celsius.
Chemical Properties:
It is the BEST solvent of all solvents.
When decomposes, it gives two atoms of Hydrogen (H2) and one atom of Oxygen (O).
It is an excellent diluent for all acids.
It reacts vigorously with Sulphuric Acid(H2SO4) producing HEAT. Acid should be added to Water, Not the other way round.
Water is an essential Nutrient to Humans, Animals and Plants.
Explanation:
