Answer:
The moons gravitational force at different points on the earth
Explanation:
The perstubation force of the sun on the moon at two places in its orbit . The blue arrows represent the direction and magnitude of the gravitational force on the Earth. Applying this to both the Earth's and the Moon's position does not disturb the positions relative to each other. When it is subtracted from the force on the Moon (black arrows), what is left is the perturbing force (red arrows) on the Moon relative to the Earth. Because the perturbing force is different in direction and magnitude on opposite sides of the orbit, it produces a change in the shape of the orbit.
In astronomy , perturbation is the complex motion of a massive body subject to forces other than the
gravitational attraction of a single other
massive body .
Answer:
These plates were formed when earth's crust broke apart at the beginning of the global Flood.
The earth has enough gravity for strong bones and muscles.; b. There is not too much gravity for us to move and for birds to fly.; c. There is enough gravity to hold a livable atmosphere.; d. Earth has a solid surface for life.
Answer:
A and C
Explanation:
The rock layers must have formed at different times because they contain two different biozones. The rock layer containing the trilobites must have formed before the one containing the ammonites. The key thing to note here is that the Trilobites only lived from 540 to 248 million years ago. And that the Ammonites were from 245 to 65 million years ago. So there's a 3 million year gap between these 2 different creatures where neither of them existed. So the dig where the trilobites were found has to be at least 3 million years older than the dig where the Ammonites were found. So with that in mind, let's look at the options and see what makes sense.
The rock layers must have formed at the same time because they both contain biozones. * This is nonsense no matter what dates you're speaking of. In effect it claims that all rocks that indicate life were created at the same time. So this is definitely a bad choice.
The rock layers must have formed at different times because they contain two different biozones. * This is technically incorrect since it assumes that all biozones represent an unique period of time which is incorrect. However, since the biozones represented by the presence of Trilobites and Ammonites don't overlap, it is true that these these rock layers were formed at different times. I would have preferred if this option said "non overlapping biozones". But on the balance, I'd consider this option to be true, so it should be selected.
The rock layer containing the trilobites must have formed before the one containing the ammonites. * This is definitely true since the last Trilobite died about 3 million years before the first Ammonite lived. So this is a correct choice.
The rock layer containing the trilobites must have formed after the one containing the ammonites.
* This is the opposite of the previous option. And since the previous option was true, this option must be false. So this is a bad choice
Answer:
The Pampas region has a big economic impact as it is the agricultural heart of Latin America.
Explanation:
The Pampas is a region that is mostly comprised of lowlands. Naturally, it is a biome where grasses dominate. The soil is highly fertile and the region as it is is relatively large. Humans have easily seen the potential of the Pampas and spend no time converting it in an agricultural landscape.
Latin America is a region that heavily relies on agriculture, both farming and raising cattle. Large, relatively flat land with fertile soil is excellent for farming, so the Pampas has been heavily exploited for the large-scale production of agricultural goods. Also, raising cattle is among the highest in the world in Latin America and it is constantly growing as a sector, and grasslands are needed to sustain the cattle, so the Pampas again is the place to exploit for it. While this has a big and positive economic impact, the effects on the flora and fauna of the Pampas have been devastating, to say the least.
Mountain effect refers to the windward side of the mountain receiving precipitation. It is also the effect of rough terrain on radio-wave propagation. Thus, it caused reflections that produce errors in radio direction-finder indications.
