*Question*
Q: Most scientists think that ordinary matter makes up how much of the total matter in the universe?   Read this paragraph and choose the correct option from the provided answers:  Most scientists who study dark matter think it is a combination. Ordinary matter is part of it. That is mixed with some kind of matter that we haven’t discovered yet. Most scientists think that ordinary matter is less than half of the total matter in the Universe.   Choices:  - greater than half  - about half  - more than half  - less than half   A:
**Answer**
less than half

*Question*
Q: Human actions such as plowing, logging, construction and other actions contribute to what kind of erosion?   Read this paragraph and choose the correct option from the provided answers:  Many human actions make it easier for wind and water to carry away soil. They include plowing, logging, construction, and even some types of recreation.   Choices:  - weathering  - flooding  - wind erosion  - soil erosion   A:
**Answer**
soil erosion

*Question*
Q: What property of matter is defined as the ability to do work and is required by all living organisms in order to grow and reproduce?   Read this paragraph and choose the correct option from the provided answers:  Energy is a property of matter that is defined as the ability to do work. The concept of energy is useful for explaining and predicting most natural phenomena, and it is the foundation for an understanding of biology. All living organisms need energy to grow and reproduce. However, energy can never be created nor destroyed. Energy can only be transformed. That is, energy is always conserved. This is called the law of conservation of energy . Therefore, organisms cannot create the energy they need. Instead, they must obtain energy from the environment. Organisms also cannot destroy or use up the energy they obtain. They can only change it from one form to another. Organisms will either use their energy (for metabolism) or release it to the environment as heat.   Choices:  - growth  - food  - heating  - energy   A:
**Answer**
energy

*Question*
Q: What are the secretions released by the endocrine glands called?   Read this paragraph and choose the correct option from the provided answers:  Endocrine Glands The secretions of endocrine glands are called hormones. Hormones are released into the interstitial fluid, diffused into the bloodstream, and delivered to targets, in other words, cells that have receptors to bind the hormones. The endocrine system is part of a major regulatory system coordinating the regulation and integration of body responses. A few examples of endocrine glands include the anterior pituitary, thymus, adrenal cortex, and gonads.   Choices:  - acids  - fluids  - enzymes  - hormones   A:
**Answer**

hormones