Answer:
A. was once covered in wet mud
Explanation:
The presence of preserved mud cracks indicates the region was once covered in wet mud, the wet mud sticks for a period of time. Mud cracks are known to be sedimentary in nature
The basement because that’s where nothing will fall on you like glass or anything and it’s stable because it’s underground
ENERGY IS MEASURED AS;
<em>Joules (J)</em> - in International system of units (SI)
[one joule is a force strong enough to move 1 kilogram at a rate of 1 meter per second per second.]
<em>(All</em><em> other units of energy are referenced to the joule.</em><em>)</em>
- Electronvolt
- Calories
- Horsepower / hour
The correct answer for this question is this one:
<span>The impact on the christmas island crab population of a very dry season is that their spawning will be lesser than compared to the previous years. The effect of the climate change has a greater one with the crab population.</span>
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The primary reason for low agricultural productivity in Africa is that Africa lacks infrastructure and uses technology sparingly.
<h3>What is agricultural productivity?</h3>
The ratio of agricultural outputs to inputs is used to calculate agricultural productivity. This productivity is defined to as crop yield, the variety of products makes measuring overall agricultural output difficult.
Therefore, the primary reason for Africa's low agricultural productivity is a lack of infrastructure and a conservative use of technology.
Learn more about the agricultural productivity, refer to:
brainly.com/question/2760047
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