Body elements and trace fossils I believe
Make a ball of clay and embed small beads throughout it. The plum pudding model.
694,563,239 rounded to the nearest thousand is 694,563.
It's because the first digit from the right is for ones, second for tens, third for hundreds and fourth for thousands and that's the one that we should take a closer look at. You can round it either to 3 or 4, depends on the digit of hundreds. In this case 3239 is clearly closer to 3000 than 4000, that's why we round it to 694,563, not 694,564.
Answer:
The first ionization energy for K is less than Ca because Ca has a larger effective nuclear charge.
Answer:
Sun light comes from the sun which is a part of our solar system
and it look different because the earth is spinning so the angle will can and that will determine if the sun rays will get light or darker