Answer:
C. Plants release carbon dioxide and take in oxygen through the xylem in leaves.
Explanation:
Plants exchange gas with the atmosphere and release carbon dioxide and take in oxygen through the xylem in leaves.
Answer:
After you eat it takes about six to eight hours for food to pass thorough your stomach and small intestine. Food then enters your large intestine (colon) for further digestion absorption for water and finally elimination of undigested food. It takes 36 hours for food to move through the entire colon.
Explanation:
Answer:
B. Hardness
Explanation:
Physical properties of a substance is defined as the properties which can be observed or measured without changing the composition of matter.
Physical properties include odor, appearance, color, texture, boiling point, melting point and many others.
Hardness is a physical property of a substance as it describes the resistance of substance to deformation and can be observed by simple touch or without changing the composition of matter.
While reactivity, toxicity and flammability are chemical properties of substances that change one type of matter into another type.
Hence, the correct option is B.
Answer: The absorbed energy warms the atmosphere and the surface of the Earth. This process maintains the Earth's temperature at around 33 degrees Celsius warmer than it would otherwise be, allowing life on Earth to exist. Greenhouse gases keep our planet livable by holding onto some of Earth's heat energy so that it doesn't all escape into space. This heat trapping is known as the greenhouse effect. Just as too little greenhouse gas makes Earth too cold, too much greenhouse gas makes Earth too warm.
Explanation:
Answer:
Four haploid gametes are formed
Explanation:
