Tides are caused by the force of gravity from the sun and moon acting on earth. true or false

Answer is true

Explanation:

Tides are rise and fall of the sea level. The reason for these tides are mainly the combined effects of gravitational forces exerted by the Sun and the Moon.

Also we have earth is constantly rotating around the Sun while the Moon is rotatng around the earth.

These causes the change in gravitational forces and cause the tides rise and fall.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation: