question 10\nnasa has recently sent several spacecraft, called rovers, to mars to explore the planets…

question 10\nnasa has recently sent several spacecraft, called rovers, to mars to explore the planets surface. one of these rovers has a mass of about 900 kilograms. the mass of mars is about one - tenth the mass of earth. how does the weight of the rover on mars compare to its weight on earth?\na its weight is zero on mars because mars lacks a gravitational field.\nb its weight is lower on mars because the mass of mars is smaller than earths mass.\nc its weight is the same on mars because its mass remains the same on both planets.\nd its weight is higher on mars because the density of mars is greater than the density of earth.\nquestion 11\nwhich statement about seismic waves is accurate?\na seismic waves only relate to earthquakes.\nb seismic waves have uniform motion within earths layers.\nc seismic waves change speed when density changes in earths layers.\nd seismic waves determine differences in temperature in earths layers.\nquestion 12\na population of beetles has both green and brown individuals. initially, the beetle population contained mostly green individuals, but then the population changed so that most of the population was brown.\nmove the statements into the blank boxes to sequence the changes in the order in which they must have occurred to result in this change in the beetle population.\n• move only one statement into each blank box.\norder statements\nfirst \nsecond \nthird \nfourth \nstatements\nbrown beetle population increases.\nbrown color improves survival.\nmore brown beetles reproduce.\nthe environment changes.

question 10\nnasa has recently sent several spacecraft, called rovers, to mars to explore the planets surface. one of these rovers has a mass of about 900 kilograms. the mass of mars is about one - tenth the mass of earth. how does the weight of the rover on mars compare to its weight on earth?\na its weight is zero on mars because mars lacks a gravitational field.\nb its weight is lower on mars because the mass of mars is smaller than earths mass.\nc its weight is the same on mars because its mass remains the same on both planets.\nd its weight is higher on mars because the density of mars is greater than the density of earth.\nquestion 11\nwhich statement about seismic waves is accurate?\na seismic waves only relate to earthquakes.\nb seismic waves have uniform motion within earths layers.\nc seismic waves change speed when density changes in earths layers.\nd seismic waves determine differences in temperature in earths layers.\nquestion 12\na population of beetles has both green and brown individuals. initially, the beetle population contained mostly green individuals, but then the population changed so that most of the population was brown.\nmove the statements into the blank boxes to sequence the changes in the order in which they must have occurred to result in this change in the beetle population.\n• move only one statement into each blank box.\norder statements\nfirst \nsecond \nthird \nfourth \nstatements\nbrown beetle population increases.\nbrown color improves survival.\nmore brown beetles reproduce.\nthe environment changes.

Answer

Brief Explanations:

Question 10:

Weight is the force exerted on an object due to gravity, calculated by (F = mg) (where (m) is mass and (g) is gravitational - acceleration). Mars has a smaller mass than Earth, so its gravitational - acceleration is less. Thus, the weight of the rover on Mars is lower.

Question 11:

Seismic waves change speed when they encounter changes in the density of Earth's layers. This property is used to study the Earth's interior.

Question 12:

The process of natural selection explains the change in the beetle population. First, the environment changes. Then, the brown color improves survival in the new environment. This leads to more brown beetles reproducing, and finally, the brown beetle population increases.

Answer:

Question 10: B. Its weight is lower on Mars because the mass of Mars is smaller than Earth’s mass.

Question 11: C. Seismic waves change speed when density changes in Earth’s layers.

Question 12:

First: The environment changes. Second: Brown color improves survival. Third: More brown beetles reproduce. Fourth: Brown beetle population increases.