Answer:
The hardness rating is 4.
Explanation:
Calcite sits at a hardness rating of 3 and is very easily scratched with a knife and/copper coin. This is where most Marbles, limestones, travertines, rate.
Meanwhile, Fluorite sits at hardness 4 and can be scratched by a knife.
Atomoxetine (brand name Strattera) is a norepinephrine reuptake inhibitor approved for the treatment of attention deficit hyperactivity disorder (ADHD).This compound is manufactured, marketed, and sold in the United States as the hydrochloride salt (atomoxetine HCl) under the brand name Strattera.https://www.creative-peptides.com/product/atomoxetine-hydrochloride-item-10-101-111-13.html
Among the following the benefit of using agroforestry in a tropical rain-forest climate is that growing trees provides a boost in crop output for a short time.
Answer: Option A
<u>Explanation:</u>
Agroforestry is a kind of practice in which trees are grown along with the crop which benefits the crop; there is different alley cropping, silvopasture and forest cropping.
Combining forests and agriculture seem to perform many benefits to the farmer. This type of practice has enabled farmers to show nutrient cycling, crop productivity and change in the micro climate of the place.
This helps them to reproduce much more quickly and without much effort