B-it provides a narrow field of view and the images formed are virtual, upright,front back reversed, of same size, and at same distance
C-it provides a wider field of view and the images formed are virtual but smaller and upright
D-it provides a diminished view and the images formed are virtual, upright and bigger
Answer: Option 'C' is correct.
Explanation:
convex mirror is used to look under a vehicle during a security check because it provides a wider field of view and the images formed are virtual but smaller and upright.
As the image of convex mirror provides rear view in a small frame.
i.e. the images formed by convex mirror are virtual and as it covers wider range, the image is smaller than real but upright.
Hence, option 'C' is correct.
- ATP (energy)
- oxygen
- water
- light
- glucose (sugar/carbohydrates)
B. decreased testosterone secretion
C. excessive beard growth
D. increased spermatogenesis
Answer:
A low secretion of luteinizing hormone(LH) in the normal male adult would cause B. decreased testosterone secretion.
Explanation:
For males the normal range is 1.24 -7.8 IU/L. If LH levels are below the normal range it may indicate a pituitary gland problem. Their pituitary gland may not be making enough LH which may lead to low testosterone.
Hypogonadism is a testicular disorder associated with low testosterone. Low testosterone levels can cause a variety of problems including diminished muscle mass & decreased sex drive as well as decrease in the physical as well as mental energy.
Luteinizing Hormone (LH) in males stimulates the production of testosterone. If LH secretion is low, it would result in decreased secretion of testosterone.
The secretion of Luteinizing Hormone (LH) plays a significant role in the male reproductive system. A low secretion of LH in a normal adult male most likely impacts the production of testosterone because LH stimulates the testes to produce this hormone. Therefore, a decrease in LH secretion would logically lead to a decreased secretion of testosterone (Option B). This decrease in testosterone can further lead to a reduction in sex drive, decreased muscle mass, and other sexual and physical changes.
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Oceanic lithosphere subducts while continental lithosphere does not due to differences in density and thickness. When these two plate types converge, the denser, thinner oceanic plate subducts into the upper mantle while the thicker, less dense continental plate remains buoyant.
The oceanic lithosphere subducts while the continental lithosphere does not because of differences in their composition and thickness. Continental lithosphere is generally thicker and less dense than oceanic lithosphere, making it rather buoyant. Consequently, when an oceanic plate and a continental plate converge, the denser, thinner oceanic plate is often readily thrust down into the upper mantle, creating a subduction zone.
This subduction process leads to significant pressure and temperature increases, causing the subducted plate to melt several hundred kilometers below the surface. The material from the melted plate gets recycled into a downward-flowing convection current, balancing the upward flow of material along rift zones.
In contrast, collisions between two continental plates usually result in the buckling and folding of Earth's crust, creating mountain ranges rather than subduction zones.
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