A. Bacteria because plants & animals can't obtain nitrogen directly from the atmosphere.
Alcohol gives a good amount of calorie. Every gram of alcohol will give you 7 calorie or 29kJ, which was near fat at 9 calorie/gram. In calculating this, you need to know how much percentage this beverage contains alcohol. assuming its 100% alcohol, then 14-17 grams of alcohol will result in 98-117 calorie.
Answer:
Answer is A
Explanation:
Urea consists of carbon, nitrogen and oxygen. You can find it in urine, sweat, blood and milk in mammals. In its most concentrated form, it is urine. Urea is a crystalline compound, and the nitrogen content is always at least 46 percent when dry.
Answer:
The correct answer is option d. "India was a separate continent until 45 million years ago".
Explanation:
135 million years ago, Pangea was a single continent that became separated into Laurasia in the north and Gondwana in the south. India was part of Gondwana along with Australia, South America, Antarctica and Africa. However, as a result of tectonic activity India got separated from Gondwana. This period of time at which India was a separated continent is the factor that most likely explains why animals and plants in India differ greatly from species in nearby southeast Asia. At being a separated continent, India's plants and animals go through an independent evolutionary process which made them very different an unique from nearby species.
