Answer the following question given this paragraph: Jami Dwyer. Deforestation creates significant increases in carbon dioxide levels around the world . Public Domain. Q: Does deforestation increase or decrease carbon dioxide levels around the world? Choices: - accelerate - eliminate - decrease - increase A:
increase
(Question)
Answer the following question given this paragraph: In a red supergiant, fusion does not stop. Lighter atoms fuse into heavier atoms. Eventually iron atoms form. When there is nothing left to fuse, the star's iron core explodes violently. This is called a supernova explosion. The incredible energy released fuses heavy atoms together. Gold, silver, uranium and the other heavy elements can only form in a supernova explosion. A supernova can shine as brightly as an entire galaxy, but only for a short time, as shown in Figure below . Q: What always continues in a red supergiant? Choices: - heat - movement - fission - fusion A:
(Answer)
fusion
Ques: Answer the following question given this paragraph: Even though they are very strong, bones can fracture , or break. Fractures can happen at different places on a bone. They are usually caused by excess bending stress on the bone. Bending stress is what causes a pencil to break if you bend it too far. Q: What usually causes fractures on a bone? Choices: - compressive stress - shear stress - extra weight - excessive bending stress A:
Ans: excessive bending stress
(Q).
Answer the following question given this paragraph: Photoautotrophs are cells that capture light energy, and use carbon dioxide as their carbon source. There are many photoautotrophic prokaryotes, which include cyanobacteria. Photoautotrophic prokaryotes use similar compounds to those of plants to trap light energy. Q: What type of cells capture light energy, and use carbon dioxide as their carbon source? Choices: - sporozoans - blood cells - chloroplasts - photoautotrophs A:
(A).
photoautotrophs
Ques:Answer the following question given this paragraph: Evolution focuses on past life forms and how they turned into present life forms. The history of life on Earth demonstrates how the first cells formed, turned into simple life forms, and then became more complex plants and animals. The studies of Charles Darwin have reshaped and influenced all aspects of biology. The vast amounts of evidence of evolution demonstrates the importance of the theory of evolution by natural selection. But has this process stopped? Of course not. Evolution does continue today. Q: What theory of evolution is charles darwin most known for? Choices: - natural change - natural variety - immoral selection - natural selection A:

Ans:natural selection
Answer the following question given this paragraph: The first organisms were made of only one cell ( Figure below ). The earliest cells were prokaryotes . Prokaryotic cells are surrounded by a cell membrane. They do not have a nucleus. Their organelles are free in the cell. The cells get their nutrients directly from the water they live in. The cells need to use these nutrients to live and grow. Q: The earliest cells were prokaryotes, surrounded by a cell membrane but lacking which key structure? Choices: - mitochondria - ribosomes - lysosomes - nucleus A:
nucleus