Answer the following question given this paragraph: The single biggest cause of extinction today is habitat loss . Agriculture, forestry, mining, and urbanization have disturbed or destroyed more than half of Earth's land area. In the U. S. , for example, more than 99 percent of tall-grass prairies have been lost. Other causes of extinction today include:. Q: Connected to agriculture, forestry, mining, and urbanization, what is the single biggest cause of extinction today? Choices: - freshwater loss - hunting - global warming - habitat loss A:
habitat loss
Answer the following question given this paragraph: 30.3 The reproductive adaptations of angiosperms include flowers and fruits. Q: In angiosperms, flowers and fruits are adaptations essential for what process? Choices: - variation - death - photosynthesis - reproduction A:
reproduction
Q: Answer the following question given this paragraph: A molecule of water ( Figure below ) is made of three atoms bonded together. Two of these atoms are hydrogen and one atom is oxygen. The hydrogen ions have a positive electrical charge. The oxygen atom has a negative electrical charge. The hydrogen atoms are located on one side and the oxygen atom on the other. This means that the side with the hydrogen ions has a slightly positive charge. The other side, the side without the hydrogen ions, has a slightly negative charge. The water molecule is a polar molecule . Q: What molecule is made of two hydrogen atoms and one oxygen atom? Choices: - Oxygen - carbohydrate - lipids - water A:
A: water
Question: Answer the following question given this paragraph: Light is a wave of changing electric and magnetic fields. Light waves are caused by disturbances in an electromagnetic field, like the acceleration of charged particles (such as electrons). Light has a dual nature; at times, it acts like waves, while at other times it acts like particles, called photons . Light travels through space at the maximum speed allowed by the laws of physics, called the speed of light. Light has no mass, but it carries energy and momentum. Fermat's principle states that light will always take the path that takes the least amount of time (not distance). Q: Fermat's principle states that what will always take the path that takes the least amount of time? Choices: - sound - wind - electricity - light A:
Answer: light
*Question*
Answer the following question given this paragraph: An ecosystem consists of all the living things and nonliving things interacting in the same area. Q: What consists of all the living things and nonliving things interacting in the same area? Choices: - biodiversity - habitat - biome - ecosystem A:
**Answer**
ecosystem
Answer the following question given this paragraph: Plasma is a state of matter that lacks a fixed volume and a fixed shape and consists of charged particles called ions. Because it consists of charged particles, plasma can conduct electricity and respond to a magnetic field. Q: Which state of matter lacks a fixed volume, fixed shape, and consists of charged particles? Choices: - electrons - atoms - isotopes - ions A:
ions