Absolutely true! With the invention of steam power, a new source of energy was formed, and in return paved the way for more machinery to be built using this power.
Answer:
Sensors that measure a variety of essential soil properties on the go are being developed. These sensors can be used either to control variable rate application equipment in real-time or in conjunction with a Global Positioning System (GPS) to generate field maps of particular soil properties. Depending on the spacing between passes, travel speed, and sampling and/or measurement frequency, the number of measurement points per acre varies; however, in most cases, it is much greater than the density of manual grid sampling. The cost of mapping usually is reduced as well.
Explanation:
When a Melanesian tries to heal a wound by bandaging the arrow that struck him, he is practicing magic.
Answer: Option A
<u>Explanation:</u>
Melanesiansare indigenous people of Pacific islands. They have their own culture and way of living which is quite different from the way of living of modern day man. They believe in the magic and the given practice is illustrative of it.
They try to heal the wound by bandaging or tying it with the arrow which caused the wound. This practise is essentially magic as they believe that this will heal the wound and help the injured in recovery.
