GED Science
The tilt of the Earth's rotational axis toward or away from the sun has the following consequences:
Explanation:
The Northern Hemisphere tilts toward the sun from June through August due to Earth's axial tilt, which constantly
points in the same direction during Earth's orbit around the sun. From December through February, the Southern
Hemisphere tilts toward the sun in the same way. When a hemisphere tilts toward the sun, summer occurs, and
when a hemisphere tilts away from the sun, winter occurs.
Tides, waves, and currents occur in the world's oceans. These variables alter how people interact with the ocean and how ocean water interacts with land. Tides are variations in the ocean's sea level that occur on a regular basis.
Explanation:
Periodic fluctuations in sea levels, often known as tides, are caused by the moon's gravitational pull on the Earth.
Winds of varying strength can generate waves in ocean waters, but they aren't strong enough to affect the tides.
Ocean currents are caused by density changes in saltwater. Large-scale ocean-related disasters, such as tsunamis,
can be caused by tectonic plate movement in the water. Tides are not influenced by density variations or tectonic
plate movement since neither are powerful or constant enough.
Deoxyribonucleic acid is abbreviated as DNA. DNA is the genetic material that gives an organism the instructions it needs to grow, survive, and reproduce. Adenine, guanine, cytosine, and thymine are the four chemical bases used to encode information in DNA. The information accessible for creating an organism is determined by the sequencing of these bases.
Explanation:
A fruit smoothie recipe describes the elements (components) to combine. DNA contains information about the
components of a cell or organism. DNA, on the other hand, does not build these components.
The aorta, the body's biggest artery, is 36 mm in diameter in a healthy male. What is the typical diameter of a human male's aorta in meters if 1 meter equals 1000 millimeters?
Explanation:
Using the conversion factor (1 m = 1000 mm), convert the reported average diameter in millimeters to meters. To
establish suitable units, use dimensional analysis:
\(36 \text{ mm} \ast \frac{1 \text{ m}}{1000 \text{ mm}} = 0.036 \text{ m}\)
The mm in the numerator cancels out the mm in the denominator, resulting in the desired units of meters.
Two objects on Earth are dropped from the top of a 70-meter-high structure. Object A weighs 12 grams while object B weighs 6 kg. Which object will reach the ground first, assuming no air resistance?
Explanation:
Without air resistance, the gravitational field of the Earth is the sole force acting on the two objects. As a result,
the acceleration of both item A and object B is mass independent, and both velocities will rise by 9.8 meters per
second per second. Both things will touch the ground at the same moment since they are dropped from the same
height and travel at the same rate.
Two mice mate and have children. The genotype (Gg) is the phenotypic for grey fur color, and both mice have it. Calculate the likelihood that these two mice will have a white-furred offspring using a Punnett square (gg).
Explanation:
The complete Punnett square demonstrates that the individual's likelihood of possessing the genotype (gg) that
causes the phenotype of white fur is 1 in 4, or 25%. The genotype (Gg), which is the heterozygous phenotype for
grey fur, will be found in half of the progeny, or two out of four. Another 25% of the pups will have the homozygous
dominant genotype (GG), which means they will have grey fur as well.
Local bears rely on a lake for their primary source of food since it includes a large number of fish. What would happen if a big section of the fish population died as a result of an algal bloom?
Explanation:
The elimination of the fish, which serves as their primary food source, would reduce the number of bears in the area.
The decline in fish population would either lead the bears to perish, allow them to more completely exploit another
food source in the area, or force them to seek food elsewhere. Because the bear population depends on the fish
population for survival, an increase in the bear population would not be a proper relationship. It is impossible to
determine that the bears will hibernate based on the facts presented.
Which of the following does NOT contribute to the creation of mountains and valleys on the Earth's surface?
Explanation:
Ozone has no direct effect on the Earth's surface. Processes are carried out in a through d can.
All of the following are caused by molten rock convection currents within the Earth's mantle EXCEPT
Explanation:
Sunlight is generated by nuclear reactions on the sun, not by molten rock convection currents in the Earth's mantle.