Answer the following question given this paragraph: Rainwater absorbs carbon dioxide (CO 2 ) as it falls. The CO 2 combines with water to form carbonic acid. The slightly acidic water is especially good at dissolving the rock limestone. Groundwater creates landforms by dissolving away rock. Q: Rainwater absorbs carbon dioxide (co 2 ) as it falls. the co 2 combines with water to form what? Choices: - carbon monoxide - nitrate acid - methane gas - carbonic acid A:
carbonic acid
(Question)
Answer the following question given this paragraph: For the first 4 billion years of Earth history there is only a little evidence of life. Organisms were tiny and soft and did not fossilize well. But scientists use a variety of ways to figure out what this early life was like. Note that the period from Earth's origin to the beginning of the Phanerozoic is called the Precambrian. Q: What is the period from earth's origin to the beginning of the phanerozoic eon? Choices: - Paleolithic - Cenozoic - anatolian - precambrian A:
(Answer)
precambrian
Ques: Answer the following question given this paragraph: Gamma rays are electromagnetic waves that carry photons of energy called gamma particles. They are the most energetic of all electromagnetic waves. Q: Which electromagnetic waves are the most energetic of all electromagnetic waves? Choices: - sunlight rays - plasma rays - ultraviolet rays - gamma rays A:
Ans: gamma rays
(Q).
Answer the following question given this paragraph: The Bohr model postulates that electrons orbit the nucleus at fixed energy levels. Q: What model postulates that electrons orbit the nucleus at fixed energy levels? Choices: - Newton's model - coreolis - atomic model - bohr A:
(A).
bohr
Ques:Answer the following question given this paragraph: This tiny plant can use the energy of the sun to make its own food. You can't make food by just sitting in the sun. Plants are not the only organisms that can get energy from the sun, however. Some protists, such as algae, and some bacteria can also use the energy of the sun to make their own food. Q: What is the main type of organism that gets its energy directly from the sun? Choices: - animals - carnivores - consumers - plants A:

Ans:plants
Ques:Answer the following question given this paragraph: Amphibians can be found in freshwater and moist terrestrial habitats throughout the world. The only continent without amphibians is Antarctica. Amphibians are especially numerous in temperate lakes and ponds and in tropical rainforests. Q: What is the only continent without amphibians? Choices: - Australia - Europe - Africa - antarctica A:

Ans:
antarctica