Highwall mining is often used when excavating an open-pit mine becomes too expensive. There are many advantages over underground mining, including the fact that it is both more cost-effective and involves less lead time.
A. The rate of photosynthesis must be greater than the rate of respiration
Answer:
The Greeks had to raise crops and animals suited to the hilly environment and the climate of hot, dry summers and wet winters. Their crops were wheat, barley, olives and grapes.
Indonesia is the fourth-largest populated country in the world; New Zealand was inhabited by the Maori; Philippines was a Spanish colony; and Malaysia is partly connected to mainland Asia.
<h3>What are the different countries in the world?</h3>
There are roughly 200 countries in the world, which are characterized by different cultures, history, ethnicity and other numerous factors.
On the basis of population, Indonesia is the fourth-largest country in the world, with a population of over 200 million. New Zealand's culture was after the in habitation of the Maori people.
The Philippines became a Spanish colony in the 16th century; and Malaysia is not wholly connected to the mainland of the Asian continent.
Hence, the matches regarding different countries in the world are aforementioned.
Learn more about countries in the world here:
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<span>Answer:
The carbons on the closures are sp² hybridized, with a p-orbital for the 'second' bond in the twofold bond with their neighboring carbons.
They have those sp² orbitals covering with the s from the hydrogen, and they have a p covering in the pi bond with the neighboring carbon. They likewise have a sigma bond with the neighboring carbon I'll get to.
The center carbons each have two pi bonds with their neighbors, leaving sp hybridiaztion for the rest. So they have sp/sp² with the end carbons, and sp/sp with each other. (What's more, they likewise have p/p in the pi bonds).
So the total list is:
s/sp²
p/p
sp/sp²
sp/sp</span>
