Leaf Anatomy

Most carbon on Earth is stored in rocks and sediments. ... For example, coal and other fossil fuels are made of carbon from plants that has been stored under the ... Feb 23, 2023 ... Hydrogen is a clean alternative to methane, also known as natural gas. It's the most abundant chemical element, estimated to contribute 75% of the mass of the ... Plant trees to support reforestation work in the locations where it is needed most. Give Today. Give Monthly. Select an amount to donate: 5 20 50 100 Other. Background Information: Plants make sugar by using energy from sunlight to transform carbon dioxide (CO2), a gas absorbed from the air, and water ( ... Iron is made by removing oxygen and other impurities from iron ore. When ... Which country makes the most steel? worldsteel updates the list of steel ... For more detailed information, OSHA has de- veloped a Safety and Health ... Ricin is one of the most toxic and easily pro- duced plant toxins. It has ... Oxygen (O2) makes up 21% of the Earth's atmosphere, and ozone makes up less ... Most of the stratospheric ozone is produced at tropical latitudes, but ... We're here to help! Join us for these virtual sessions covering various topics that will help you make the most of your financial aid. April 11 Understanding ... Fish and shellfish become stressed with low or no oxygen, more susceptible ... Widespread heavy metal contamination leads to premature plant and animal death and ... To learn more about a specific rare plant occurrence, you may request natural heritage information. Conservation and management guidance for rare animals is ...