Q: The scientific process of collecting data outside the lab (in the "wild") is known as what kind of work? Read this paragraph and choose the correct option from the provided answers: Many Earth scientists collect data in the field, called field work . The data may be from observations or measurements. The scientists may create a geological map of the area. They might write detailed descriptions of the rocks and their relationships. They may collect samples to analyze in the lab. They may do a combination of all of these! Earth science laboratories contain high-tech equipment. That equipment can reveal the chemistry or age of a rock sample. Geologists do field work to look for resources. They may study a region for environmental cleanup. There are many other reasons for going in the field. One common reason is just to understand the region better. Choices: - scientific investigation - experimentation - track work - field work A:
field work

Q: When a lower energy level is ______ electrons are added to the next higher energy level. Read this paragraph and choose the correct option from the provided answers: Only when a lower energy level is full are electrons added to the next higher energy level. Electrons at higher energy levels, which are farther from the nucleus, have more energy. They also have more orbitals and greater possible numbers of electrons. Choices: - unbalanced - ready - empty - full A:
full

Q: Each what is made of two identical sister chromatids? Read this paragraph and choose the correct option from the provided answers: Chromosomes, like those shown here, must form prior to cell division, to ensure that each daughter cell receives a complete set of genetic material. Each chromosome is made of two identical sister chromatids. Each chromatid is 1/2 of the "X. " Essentially, each daughter cell receives half of each "X-shaped" chromosome. Choices: - helix - genome - gene - chromosome A:
chromosome

Q: Because the nuclei of each h atom contain protons, the electrons in the bond are attracted to the nuclei (opposite charges attract). but because the two atoms involved in the covalent bond are both h atoms, each nucleus attracts the electrons by the same amount. thus the electron pair is equally shared by these? Read this paragraph and choose the correct option from the provided answers: Because the nuclei of each H atom contain protons, the electrons in the bond are attracted to the nuclei (opposite charges attract). But because the two atoms involved in the covalent bond are both H atoms, each nucleus attracts the electrons by the same amount. Thus the electron pair is equally shared by the two atoms. The equal sharing of electrons in a covalent bond is called a nonpolar covalent bond. Now consider the HF molecule:. Choices: - four atoms - one atom - nine atoms - two atoms A:
two atoms