Answer:
Layer A: inner core
Explanation:
The solid, inner core (Layer A) is comprised mainly of iron and nickel and is scorching hot. The outer core (Layer B) does have iron and nickel as well, but it's in its liquid form. The lower mantle (Layer C) consists of iron-rich perovskite, which is a ferromagnesian silicate mineral. The upper mantle (Layer D) is made of olivine, pyroxene, calcium oxide, and aluminum oxide.
Answer:
They are different layers that protect us...skin protects your muscles, and your muscles protect your cells
Explanation:
Hope this helps :)
If not sorry
Roots will always grow down due to geotropism. It is caused by the statocytes in the root cap. They sense the force of gravity and grow down according to it. But if the root does not have a root cap, then the plant will not necesarily grow down. And if the seed is layed on a flat place like a counter, then the roots will grow any which-way
The first one is correct, because any other option would be absolutely illogical. That's chicken, and chicken is a living organism, which means it comes from the biosphere.
The second one is also correct since in that case (with those options) only remains of living things can become fossil fuels. These are fuels originated through natural processes, and the other things mentioned can't be processed into fuels.
The third image is not incorrect, but I don't know what the other options are. Even though it is totally correct the way it is. Carbon dioxide is indeed a greenhouse gas, and water cannot penetrate concrete, so they wont reach groundwater in the area covered by the factory.
Hope it helped,
BioTeacher101
