Answer:
B. Natural selection acted on the variation that was present in the population
Explanation:
I had this question asked on a test and got a 5/5
A is your anwser have a good day ;)
Answer;
-the continental shelf, slope, and trenches;
The continental shelf, slope, and trenches are the structures on the ocean that are equivalent to the mountains on land.
Explanation;
-Continental shelf is that shallow part of the ocean floor that begins at the shoreline and gently slopes underwater to an average depth of about 430 feet. It is normally covered with thick layers of sediment.
-Continental slope begins at the edge of the continental shelf and plunges down to depths of over two miles and are covered with thick layers of sand, mud and continental shelf.
-Ocean trenches are very deep and similar to canyons on land.
B.) using dumps instead of landfills
C.) using coal instead of oil
D.) using fireplaces instead of a wind farms
Answer:
The correct answer is option A.
Explanation:
Any unwanted substances or particles found in the air can result in air pollution. However, this can be reduced by following certain steps. One of the ways is to replace cars with bikes, as using a bike in place of a car is less deleterious in comparison to a car.
Car discharges more amount of pollutants into the environment in comparison to that of a bike. The amount of harmful gases like sulfur dioxide, carbon dioxide, and nitrogen oxide emitted from the bikes is less in comparison to that of cars.
Answer:
Explanation: Have a nice day and let me know if this helped!
In the summer night sky, some stars appear that are not visible in the winter night sky due to the Earth's orbit around the Sun. Here's why:
1. Earth's orbit: The Earth orbits the Sun in an elliptical path, taking approximately 365 days to complete one revolution. This means that as the Earth moves around the Sun, the night sky we see changes throughout the year.
2. Seasonal tilt: The Earth's axis is tilted relative to its orbit around the Sun. This tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year, leading to the changing seasons. During summer in the northern hemisphere, the North Pole is tilted towards the Sun, resulting in longer days and shorter nights.
3. Nighttime visibility: In summer, the longer nights allow us to see different parts of the night sky compared to winter. When the Earth is on the side of its orbit that faces away from the Sun during summer, we are looking in a different direction compared to winter.
4. Constellation visibility: The constellations we see in the night sky change depending on our position in the Earth's orbit. In the summer, we can see constellations such as Cygnus, Lyra, and Aquila, which are not as visible in winter. Similarly, winter constellations like Orion and Taurus are more prominent in the winter night sky.
5. Stellar movement: Some stars are visible only during specific seasons due to their position in the night sky. As the Earth orbits the Sun, the stars appear to shift their positions in relation to our observation point on Earth. This causes certain stars to appear or disappear from view depending on the time of year.
In conclusion, the appearance of stars in the summer night sky compared to the winter night sky is primarily due to the Earth's orbit around the Sun, the seasonal tilt of the Earth's axis, and the changing visibility of constellations and stars throughout the year.