Answer:
B. An atom is a solid sphere
Explanation:
The idea that the atom was a solid sphere paved back to the first atomic model in the <em>19th century</em> theorized by <em>John Dalton</em>. According to him, an atom is <u>intact and hard and cannot be broken down or divided</u>.
However, many scientists continued to research and it was found that <em>the atom was not actually a solid sphere.</em> It was made up of<em> protons (positively-charged), electrons (negatively-charged) and neutrons (neutrally-charged). </em>This invalidated Dalton's solid sphere model.
Anthropology is said to be "holistic because it <u>combines studies of biological and cultural phenomena</u>
Answer: Option C
<u>Explanation:</u>
Anthropology is said to be study of several subjects which are combined together into one. This combination of several subjects into one is what makes it a holistic approach.
The sub division of this subject is into study of bio logical make up of man and also focusing on cultural aspects of man. It only takes into consideration natural sciences alone but the theories related to social sciences also.
Answer:
9.4608 × 10¹³ seconds.
Explanation:
Data provided:
Distance of Andromeda from Earth = 3 million light years
Now,
3 million light year means that the light will take 3 million years to reach the Earth
also,
in 1 year there are ( 365 × 24 × 60 × 60 ) = 31536000 seconds
therefore,
3 million years in seconds = 3 million × 31536000 seconds
= 3,000,000 × 31536000
= 9.4608 × 10¹³ seconds.
Here are the following answers to the five questions:
(1) "<span>Form only at boundaries between two continental plates."
(2) "</span><span>A fault-block mountain"
(3) "</span><span>Island arcs form when hot, fluid rock rises through thin spots in Earth's crust, whereas hotspot volcanoes form when two oceanic plate boundaries push against each other until subduction happens and the plates partially melt."
(4) "</span><span>The fault plane runs from the top of the rock to the bottom of the rock at an angle greater than 45 degrees."
(5) "</span>Segments of Earth's crust bent and doubled over, and moving wind and water gradually shaped the rock into gently sloping domes."