Ques: Answer the following question given this paragraph: Rainfall in an area is important because it influences the rate of weathering. More rain means that more rainwater passes through the soil. The rainwater reacts chemically with the particles. The top layers of soil are in contact with the freshest water, so reactions are greatest there. High rainfall increases the amount of rock that experiences chemical reactions. High rainfall may also carry material away. This means that new surfaces are exposed. This increases the rate of weathering. Q: What weather phenomenon increases the rate of weathering in rock and soil? Choices: - temperature - earthquake - landslide - rainfall A:
Ans: rainfall

Ques: Answer the following question given this paragraph: Everyday objects are made up of quarks from the lowest energy family, namely up and down quarks. Quarks in the middle energy family are found in cosmic rays and are produced in particle accelerators. Particles in the high energy family are believed to have existed briefly during the earliest moments of the Big Bang and are created only in high energy collisions. Q: Quarks in the middle energy family are found in cosmic rays and are produced in what? Choices: - particle processors - cosmic accelerators - particle splicers - particle accelerators A:
Ans: particle accelerators

Ques: Answer the following question given this paragraph: Water and many other substances cannot simply diffuse across a membrane. Hydrophilic molecules, charged ions, and relatively large molecules such as glucose all need help with diffusion. The help comes from special proteins in the membrane known as transport proteins . Diffusion with the help of transport proteins is called facilitated diffusion . There are several types of transport proteins, including channel proteins and carrier proteins. Both are shown in Figure below . Q: The help with diffusion comes from special proteins in the membrane known as what? Choices: - lazy proteins - navigation proteins - installation proteins - transport proteins A:
Ans: transport proteins

Ques: Answer the following question given this paragraph: Some bacteria depend on other organisms for survival. For example, some bacteria live in the roots of legumes, such as pea plants ( Figure below ). The bacteria turn nitrogen-containing molecules into nitrogen that the plant can use. Meanwhile, the root provides nutrients to the bacteria. In this relationship, both the bacteria and the plant benefit, so it is known as a mutualism . Q: In biology, a relationship that benefits both entities is known as what? Choices: - naturalism - altruism - predatory - mutualism A:
Ans:
mutualism