Question

1. how do scientists collect evidence about climate changes?

a. using remote sensing from space with satellites
b. using ground - based measurements of temperatures and carbon dioxide, and sea level
c. by collecting information from tree rings, ice cores, and historical records
d. all of the above

Explanation:

Scientists use multiple methods to gather evidence for climate change. Remote sensing via satellites tracks large-scale climate patterns like ice cover and sea level shifts. Ground-based measurements monitor direct climate variables such as temperature and CO₂ levels. Proxy data from tree rings, ice cores, and historical records provides insights into past climate conditions, which helps model current and future changes. All these approaches are valid and used together.

Answer:

d. all of the above